M1574210D.2 Electric Hot Water

M1574210D.2
ITEM NUMBER: 1574210, 1574211, 1574212, 1574213
SERIAL NUMBER: _____
Owner’s Manual
Electric Hot Water/Steam Pressure Washer
Instructions for Set-up, Operation, Maintenance & Storage Portable Outdoor ­ Use Only
This pressure washer produces both cold and hot water high-pressure spray as well as wet steam. Cleaning chemicals may be incorporated into the spray if desired. The pressure pump for this equipment is powered by an electric motor and the water is heated by a diesel, kerosene/fuel-oil fired, down draft burner.
WARNING: SPECIAL HAZARDS
· Skin/Eye Injury: High-pressure spray can cause serious skin or eye injury, including injection injury if fluid pierces the skin. Injection injury can result in blood poisoning and/or severe tissue damage.
· Burns: Hot spray can scald and burn skin. Hot surfaces of wand and burner, as well as hot exhaust from the burner can cause burns.
· Slips/Falls: Spray discharge can cause puddles and slippery surfaces. Spray- gun kickback can cause operator loss of balance and falls.
· Flying Debris: High-pressure spray can cause surface damage and flying debris. · Fire/Explosion: Burner sparking can ignite fuel or other flammable liquids or vapors in the vicinity. Hot exhaust from burner
can ignite combustible materials. · Chemical Exposure: Cleaning chemical vapors or contact with skin may be hazardous. · Electric shock: Spray contact with electrical sources can cause electric shock. · Electrocution: Improper connection of the equipment or grounding conductor can result in a risk of electrocution. · CO Poisoning: Exhaust from burner contains carbon monoxide, a poisonous gas that can cause carbon monoxide poisoning
and possible death if inhaled.
Equipment Protection Quick Facts
Inspect Upon Delivery: STOP! Closely inspect to make sure no components are missing or damaged. For missing or damaged components please contact Product Support at 1-800-270-0810.
Check Pump Oil: Pump is shipped with oil. Check pump oil level before starting. – Remove shipping tape and black vent plug (if present) from pump oil fill cap (CAT Pumps) – Pump is supplied with Vented fill cap (General Pumps only)
Water Flow Requirements: Make sure your supply water flow rate is 20% higher than the pressure washer’s flow rate (See Specification Section for unit specific flow rates), and that your water is clean and particle free.
Chemical Spraying: Use only NorthStar brand or equivalent washer chemicals designed for pressure washer use.
Maintenance Schedule: Pump, burner fuel filter, burner coil and electrodes require periodic checking and servicing to keep pressure washer functioning efficiently. See “Maintenance & Repair” for frequency of servicing.
Any Questions, Comments, Problems or Parts Orders
Call NorthStar Product Support 1-800-270-0810
1

Table of Contents
Equipment Protection Quick Facts ………………………………………………………………………………………………………………………………………….1
TABLE OF CONTENTS …………………………………………………………………………………………………………………………………………….. 2
ABOUT YOUR PRESSURE WASHER ………………………………………………………………………………………………………………………… 4
SPECIFICATIONS ……………………………………………………………………………………………………………………………………………………. 5
COMPONENT IDENTIFICATION………………………………………………………………………………………………………………………………… 6
SPECIAL EQUIPMENT SAFETY FEATURES ……………………………………………………………………………………………………………… 8
High Pressure Safety Device (Rupture Disc)……………………………………………………………………………………………………………………………8 Temperature Sensor…………………………………………………………………………………………………………………………………………………………….8 Spray Gun Safety Latch………………………………………………………………………………………………………………………………………………………..8 High Pressure Limit Switch ……………………………………………………………………………………………………………………………………………………8
SAFETY ……………………………………………………………………………………………………………………………………………………. 9
Hazard Signal Word Definitions ……………………………………………………………………………………………………………………………………………..9
SAFETY DECAL LOCATIONS …………………………………………………………………………………………………………………………………. 10
ASSEMBLY AND INITIAL SET-UP …………………………………………………………………………………………………………………………… 11
Step 1. Inspect & Unpack ………………………………………………………………………………………………………………………………………………………11 Step 2. Assembly ………………………………………………………………………………………………………………………………………………………………….11 Step 3. Initial Pump & Motor Preparation ……………………………………………………………………………………………………………………………….11
Prepare Water Pump ………………………………………………………………………………………………………………………………………………………….11 Step 4. Verify Electrical Connection……………………………………………………………………………………………………………………………………….12
Grounding …………………………………………………………………………………………………………………………………………………………………………12 Ground Fault Circuit Interrupter Protection …………………………………………………………………………………………………………………………….12 Extension Cord ………………………………………………………………………………………………………………………………………………………………….12 Step 5. Moving and Handling …………………………………………………………………………………………………………………………………………………13 Moving your pressure washer around……………………………………………………………………………………………………………………………………13
BEFORE EACH USE ………………………………………………………………………………………………………………………………………………. 14
Step 1: Inspect Equipment ……………………………………………………………………………………………………………………………………………………14 Electrical …………………………………………………………………………………………………………………………………………………………………………..14 Pump Oil …………………………………………………………………………………………………………………………………………………………………………..14 Spray System…………………………………………………………………………………………………………………………………………………………………….14 Burner Fuel System (if heated water to be used) ……………………………………………………………………………………………………………………14 Periodic Maintenance …………………………………………………………………………………………………………………………………………………………14
Step 2. Check and Fill Burner Fuel Tank ……………………………………………………………………………………………………………………………….14 Filling Burner Fuel Tank (if heated water to be used) ………………………………………………………………………………………………………………15
Step 3. Select Suitable Worksite Guidelines ………………………………………………………………………………………………………………………….15 For All Indoor and Outdoor Uses ………………………………………………………………………………………………………………………………………….15 For Indoor Hot Water/Burner Use …………………………………………………………………………………………………………………………………………15
OPERATION ………………………………………………………………………………………………………………………………………………………….. 17
Step 1. Connect Hoses, Water Supply, and Spray Nozzle ……………………………………………………………………………………………………….17 Attach Garden Hose to Water Supply……………………………………………………………………………………………………………………………………17 Check Water Supply …………………………………………………………………………………………………………………………………………………………..17 Connect Water Supply to Pump……………………………………………………………………………………………………………………………………………17 Connect Pressure Hose to Pump …………………………………………………………………………………………………………………………………………17 Quick Connect Procedure……………………………………………………………………………………………………………………………………………………17 Select Spray Nozzle……………………………………………………………………………………………………………………………………………………………17 Attach Nozzle to Spray Gun…………………………………………………………………………………………………………………………………………………18
Step 2. Pre-Spraying Procedure ……………………………………………………………………………………………………………………………………………18 Safety Rules………………………………………………………………………………………………………………………………………………………………………18 Personal Protective Gear…………………………………………………………………………………………………………………………………………………….19 Purging …………………………………………………………………………………………………………………………………………………………………………….19
2

Step 3. Spraying …………………………………………………………………………………………………………………………………………………………………..19 Starting …………………………………………………………………………………………………………………………………………………………………………….19 Spraying Procedure ……………………………………………………………………………………………………………………………………………………………19 Using Chemicals for Cleaning (if desired)………………………………………………………………………………………………………………………………19 Hot Spray Procedure ………………………………………………………………………………………………………………………………………………………….21
Step 4. Stopping…………………………………………………………………………………………………………………………………………………………………..21
STORAGE…………………………………………………………………………………………………………………………………………………………….. 22
Between-Use Storage…………………………………………………………………………………………………………………………………………………………22 Long-Term Storage Preparation (between infrequent uses and at end of season) ………………………………………………………………………22 Winter Storage Preparation …………………………………………………………………………………………………………………………………………………22
MAINTENANCE & REPAIR ……………………………………………………………………………………………………………………………………… 24
MAINTENANCE SCHEDULE …………………………………………………………………………………………………………………………………… 24
DETAILED INSTRUCTIONS ­ MAINTENANCE & REPAIR …………………………………………………………………………………………. 24
Dust/Debris Removal………………………………………………………………………………………………………………………………………………………….24 Inspect Fuel System(s) ……………………………………………………………………………………………………………………………………………………….24 Inspect Spray System …………………………………………………………………………………………………………………………………………………………24 Clean Inlet Filter for Garden Hose ………………………………………………………………………………………………………………………………………..25 Check Tire Pressure …………………………………………………………………………………………………………………………………………………………..25 Change Pump Oil……………………………………………………………………………………………………………………………………………………………….25 Drain Burner’s Fuel Filter/Water Separator…………………………………………………………………………………………………………………………….25 Descale Heating Coil ………………………………………………………………………………………………………………………………………………………….25 Inspect and clean the flow switch as needed………………………………………………………………………………………………………………………….27 Inspect Heating Coil and Desoot as Needed ………………………………………………………………………………………………………………………….28 Inspect/Clean/Adjust Electrodes …………………………………………………………………………………………………………………………………………..29 Perform Engine Maintenance ………………………………………………………………………………………………………………………………………………30
OIL BURNER ADJUSTMENT (ONLY NEEDED IF WHITE EXHAUST SMOKE APPEARS) …………………………………………….. 31
TROUBLESHOOTING …………………………………………………………………………………………………………………………………………….. 32
MAJOR COMPONENTS ………………………………………………………………………………………………………………………………………….. 34
PARTS EXPLOSION: FRAME………………………………………………………………………………………………………………………………….. 35
PARTS LIST: HEAT EXCHANGER…………………………………………………………………………………………………………………………… 39
PARTS EXPLOSION: ACCESSORIES: – GUN, HOSE, CHEMICAL INJECTOR …………………………………………………………….. 44
PUMP EXPLODED-GP PUMP………………………………………………………………………………………………………………………………….. 45
PUMP EXPLOSION-CAT 4DX………………………………………………………………………………………………………………………………….. 48
PUMP EXPLODED VIEW ­ GP EP1812 PUMP ………………………………………………………………………………………………………….. 52 PUMP PARTS LIST ­ GP EP1812 PUMP ………………………………………………………………………………………………………………….. 53 PUMP PARTS LIST ­ GP EP1812 PUMP ………………………………………………………………………………………………………………….. 54 WIRING DIAGRAM – 1574210 ………………………………………………………………………………………………………………………………….. 55
WIRING DIAGRAM – 1574211 ………………………………………………………………………………………………………………………………….. 56
WIRING DIAGRAM ­ 1574212 & 13………………………………………………………………………………………………………………………….. 57 SUMMARY OF IMPORTANT SAFETY INFORMATION ………………………………………………………………………………………………. 58
LIMITED WARRANTY …………………………………………………………………………………………………………………………………………….. 63
CALIFORNIA PROPOSITION 65 INFORMATION ………………………………………………………………………………………………………. 64
3

About Your Pressure Washer

Thank you for purchasing a NorthStar hot water pressure washer! It is designed for long life, dependability, and top performance.
Intended Use. Washing siding, windows, walkways, driveways, patios, decks, fences, vehicles, boats, lawnmowers, ATVs and other equipment by:
· Producing a high-pressure water spray (heated or unheated).
· Incorporating cleaning chemicals into a lowpressure water spray.
Note: Do not use for other purposes, as unforeseen hazards or equipment damage may result.
Water Supply. The pump requires a clean, standard tap water supply provided through a garden hose at a flow rate 20% higher than the pressure washers flow rate. Use of a backflow preventer on the water supply hose is recommended and may be required by local code.
Chemical Usage. Any cleaning chemicals that are used must be specifically approved for use in pressure washers.
Power Source. The pump is powered by an electric motor. The spray water is heated (when desired) by a diesel, kerosene/ fuel oil fired, spark-ignited, down draft burner.
Supplies Required. Normal operation will require you to supply:
· Electric supply · Personal Protection Equipment · Pump Oil · Fuel for the burner (diesel, kerosene, or fuel oil)
See “Specifications” section of this manual for more detail.

Site Selection. Pressure washers used while the open flame burner is used to heat the water are for OUTDOOR USE ONLY unless specific exhausting guidelines are met. Read additional details in the “Before Each Use” section of this manual.
Personal Protection. Wear safety apparel during operation, including waterproof insulated gloves, safety glasses with side and top protection, and non-slip protective footwear. Some cleaning chemicals may require the use of a respirator mask (as instructed on chemical label).
Adult control only. Only trained adults should set up and operate the pressure washer. Do not let children operate. Pressure washers can generate forces greater than children can control and require judgment beyond what can be expected of them.
Under The Influence. Never operate, or let anyone else operate, the pressure washer while fatigued or under the influence of alcohol, drugs, or medication.
Keep this manual for reference and review. A summary of important safety information can be found at the end of the manual. Proper preparation, operation, and maintenance of this pressure washer will result in optimal performance and a long life for this equipment. For detailed Motor operation and maintenance information, always refer to the Motor Owner’s Manual furnished with the pressure washer.
ATTENTION: Rental Companies and Private Owners who loan this equipment to others!
All persons to whom you rent/loan this pressure washer must have access to and read this manual. Keep this owner’s manual with the pressure washer at all times and advise all persons who will operate the machine to read it. You must also provide personal instruction on how to safely set-up and operate the pressure washer and remain available to answer any questions a renter/borrower might have. Owner’s Manuals are available from NorthStar at 1-800-270-0810.

4

Model #
Pressure Rating Flow Rate
Minimum Water Supply Flow Rate
Maximum Temperature
Dedicated NEMA Receptacles
Motor Horsepower Amps Volts
Length Width Height Weight (fueled) Pump Model Pump Oil Capacity Nozzle Orifice Size
Burner Fuel
Pump Oil (shipped with oil, but
refills required)
Input Water Supply
Input Water Supply Hose

Specifications

1574210
1700 psi 1.5 gpm

MODEL 1574211
FLOW OUTPUT 2000 psi 1.5 gpm

1574212
2750 psi 2.5 gpm

1574213
2000 psi 4.0 gpm

1.8 gpm

1.8 gpm

3.0 gpm

4.8 gpm

NEMA-5-20R

MOTOR

250 F

NEMA-5-20R

NEMA-6-30R

NEMA-6-30R

1.5HP

2.0HP

5.0HP

6.2HP

20A

20A

30A

30A

120V

120V

240V

240V

DIMENSIONS/COMPONENTS

46″

32″

38″

367 lbs.

369 lb.

417 lb.

451 lb.

GP EVO

Cat 4DX

CAT 4DNX

GP EP1812

4.7 oz

8.5 oz

8.5 oz

15.0 oz

2.0

2.0

3.0

5.5

SUPPLIES REQUIRED (not included)

1 or #2 Diesel, B5 or lower Biodiesel, Kerosene, or Fuel Oil

(Capacity: 5 gal.)

SAE 30 NonDetergent Oil or Pressure washer Pump Oil (Part#
4043)

SAE 30 NonDetergent Oil or Cat Pump Oil (Part# 22158)

SAE 30 NonDetergent Oil or Cat Pump Oil (Part# 22158)

SAE 30 NonDetergent Oil or
Pressure washer Pump Oil (Part# 4043)

Standard tap water @ 20-75 psi, delivered @

1.8 gpm

1.8 gpm

3.0 gpm

4.8 gpm

Standard garden hose with inside diameter at least 5/8″ (at least 3/4″ diameter if hose longer than 100 ft.)

5

Component Identification

9 6

SEE DETAIL A
3

12 22
21
17

SEE DETAIL C
27

DETAIL B

20

1

13

25

2
DETAIL A

19

18

DETAIL C
23 24

10 5
8 4
SEE DETAIL B

DETAIL D BURNER FUEL PUMP

BLOWER ASSEMBLY

11

7

SEE DETAIL D

Fig.1574210_1

26

16

15

14

SCALE 1.200

Ref # 1 2 3 4 5 6 7 8 9

Description High PSI limit switch Flow Switch Heating Coil Garden Hose Water Inlet Pump Diesel Fuel Tank Diesel Fuel Cap Unloader Motor

Ref # 10 11 12 13 14 15 16 17 18

Description High Pressure Outlet Fuel Filter/Water Separator Heat Exchanger GFCI Cord Spray Gun Grip Wand Control Box (See Detail A) Power Switch

Ref # 19 20 21 22 23 24 25 26 27

Description Heat Switch Temperature Sensor Nozzle Storage Thermal Relief Valve Blower Assembly Rupture Disc Fitting Flame Sensor Quick Connector Total Start/Stop Switch

6

Component identification

1. High, PSI limit switch: This is a backup safety feature, if the system pressure exceeds the set pressure this device will stop the burner from firing.
2. Flow Switch: Mechanical device that senses water flow.
3. Heating Coil: Steel piping wound together with an inlet for incoming cold water and outlet for hot water to exit.
4. Garden Hose Water Inlet: Connection point for standard garden hose. Garden hoses less than 100′ in length must have a minimum inner diameter of 5/8.” Garden hoses over 100′ in length must have a minimum inner diameter of 3/4.”
5. Pump: A device that moves fluid through a combination of suction and displacement.
6. Diesel Fuel Tank: Fuel storage container for diesel fuels.
7. Diesel Fuel Cap: Vented cover for fuel tank. 8. Unloader: Valve that regulates pressure and
directs flow into bypass when trigger is closed. 9. Motor: Electric motor powers the pump. 10. High Pressure Outlet: Connection point for the
high-pressure hose. 11. Fuel Filter / Water Separator: Filter in fuel line
that removes water and screens out dirt and debris from fuel. 12. Heat Exchanger: Device that heats the water by forcing a flame across steel pipe.

13. GFCI Cord: Device provides additional protection form the risk of electric shock.
14. Spray Gun: Used to divert water out to nozzle. 15. Grip: Section of wand to extend length and provide
stability. 16. Wand: Rod to extend length. 17. Control Box: Housing device for mounting
switches and machine controls. 18. Power Switch: Device for protecting circuit from
damage if overloaded or shorted. 19. Heat Switch: Control Device that limits the water
temperature. 20. Temperature Sensor: Control Device that limits
the water temperature. 21. Nozzle Storage: A space for storing nozzles. 22. Thermal Relief Valve: Valve protects pump from
overheating. 23. Blower Assembly: System provides air, fuel, and
ignition for combustion. 24. Rupture Disc: Safety device that will open and
relieve excess system pressure. 25. Flame Sensor: Device for sensing if the burner
has a flame. 26. Quick Connector: Connection point on spray gun
for high pressure hose. 27. Total Start/Stop Switch: Automatically shuts
motor off when not spraying.

Note: See “Parts Explosion” for additional detail.

7

Special Equipment Safety Features

This unit is equipped with the following safety features:
High Pressure Safety Device (Rupture Disc)
Acts as a backup safety feature. If the Pressure Control Valve (Unloader) malfunctions, this separate highpressure safety device will open and relieve excess system pressure. Repair is required.

pump from overheating. The thermal relief valve is located on the pump manifold’s low-pressure port.
Spray Gun Safety Latch
Has a built-in trigger safety latch to guard against

Safety Latch
00417
accidental trigger actuation.

High Pressure Rupture Disc

Fig.1574210_R

WARNING: Rupture Disc failure
If the high-pressure safety device ever discharges water, turn the motor off and do not use the machine. Call Product Support at 1-800-270-0810.

Temperature Sensor
Measures water temperature and automatically turns burner off when temperature setting is reached. When water temperature drops, burner automatically reignites.

High Pressure Limit Switch
Acts as primary safety feature. If the system pressure exceeds the set pressure limit this device will stop the burner from firing.

Fig06831
TEMPERATURE SENSOR
Pump Thermal Relief Valve
This unit is equipped with a thermal relief valve to protect the pump from overheating. The pump continues to work in bypass mode when you are not spraying. If high temperatures are developed during bypass mode, the thermal relief valve will open and discharge hot water onto the ground, protecting the
8

Fig06830
HIGH PRESSURE LIMIT SWITCH

Hazard Signal Word Definitions
DANGER WARNING CAUTION CAUTION NOTICE

Safety
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. DANGER (red) indicates a hazardous situation, which if not avoided, will result in death or serious injury.
WARNING (orange) indicates a hazardous situation, which if not avoided, could result in death or serious injury.
CAUTION (yellow), used with the safety alert symbol, indicates a hazardous situation, which if not avoided, could result in minor or moderate injury. CAUTION (yellow), without the safety alert symbol, is used to address practices not related to personal injury.
NOTICE is used to address practices not related to personal injury.

9

Safety Decal Locations

2
-A-
Fig.1574210_2

8 7

5

1

4

6

3

3.1

Always make sure safety labels are in place and in good condition. If a safety label is missing or not legible, order

new labels or unsafe operation could result. To order replacement safety labels, call NorthStar Product Support at

1-800-270-0810.

Ref# Part#

Description

Qty

1

782325 Decal, Danger and Warning

1

2

786632 Decal, Rotating Equipment Warning

1

3

798057 Hangtag, Rupture Disk Warning

1

3.1 32821 Lanyard, Hangtag Warning

1

4

797513 Decal, Burn Hazard Decal

1

5

802203 Decal, Descaling Warning

1

6

778070 Decal, Cord Warning

1

7

802940 Decal High Pressure Spray Hazard

1

8

NA Decal, Serial Number

1

10

Assembly and Initial Set-Up

Step 1. Inspect & Unpack
Inspect the pressure washer immediately after you receive delivery for missing parts or damage. Find and separate components identified in Fig.1574210_3 and Figure 1574210_4.
· For missing or damaged components, contact Product Support at 1-800-270-0810.

Hardware Bag

High Pressure Hose Qty-1 799880

Handle Weldment

Qty-1

Spray Gun

800080

Qty-1

Only For 1574213 777420

Lance Qty-1 777421

Fig.1574210_3 Pressure Washer

Spray Gun Qty-1 779165
Lance Qty-1 791278

Fig.1574210_3 ­ Pressure Washer Components

Step 2. Assembly
You must assemble your pressure washer before it can be used. Refer to Fig.1574210_5 and follow the steps listed below:
· Install handle with six (6) 5/16″-18 x 3/4″ Flange bolts through base and handle and secure with six (6) 5/16″-18 Flange bolts.
· Install Hose Hook into right side of handle using two (2) M8 Nuts.
· Install GFCI Cord Hook into right side of handle using two (2) M8 Nuts.
· Install Nozzles into designated nozzle storage location.

INSTALL NOZZLES INTO DESIGNATED NOZZLE STORAGE LOCATION

INSTALL GFCI CORD HOOK INTO HANDLE USING TWO (2) M8-1.25 NYLOC NUTS

5/16-18 X 3/4″ SIX (6) FLANGE BOLTS

INSTALL HOSE HOOK INTO HANDLE USING TWO (2) M8-1.25 NYLOC NUTS

5/16-18 X 3/4″ SIX (6) FLANGE NUTS

Fig.1574210_4 ­ Parts to be installed

Fig.1574210_5
Step 3. Initial Pump & Motor Preparation Prepare Water Pump
Verify pump oil level. Refer to Fig.1574210_6 and follow the steps listed below. NOTE: The Pump is shipped with oil.
· Remove shipping tape and black vent plug (if present) from oil fill cap.
· Verify that oil level is halfway up the sight glass. · If oil level is low, use the oil type from below table.
See page no.13.
11

Assembly and Initial Set-Up

GP EVO Pump (For 1574210)
fill cap

Cat 4DX AND 4DNX Pump
(For 1574211 & 12)
fill cap

sight glass

drain plug sight glass Oil capacity: 4.7 oz. (.13 L)

drain plug Oil capacity: 8.5 oz. (.25L)

GP EP1812 Pump (For 1574213)

fill cap

drain Plug Oil capacity: 15 oz. (.44 L)

Sight Glass
Fig.1574210_6

Step 4. Verify Electrical Connection
Grounding
Product must be grounded. The supply cord is equipped with an equipment- grounding conductor and a grounding plug. This plug must be plugged into an outlet that is properly installed and grounded in accordance with all local codes and ordinances.

Ground Fault Circuit Interrupter Protection
Connecting the pressure washer through some type of ground fault circuit interrupter (GFCI) protector is required to comply with the National Electric Code (NFPA 70) and to provide additional protection from the risk of electric shock.
Note: Before use, your GFCI should be tested at either built-in or receptacle base.
1. This Product is provided with a ground fault circuit interrupter built into the power cord or plug. if replacement of the ground fault circuit interrupter or cord is needed, use only identical replacement parts
DANGER: Electrocution hazard
Improper connection of the equipment or grounding conductor can result in a risk of electrocution. Check with qualified electrician or service personnel if you are in doubt as to whether an outlet is properly grounded. Do not modify the plug provided with the product. If it will not fit the outlet, have a proper outlet installed by a qualified electrician. Do not use any type adapter with this product.

Extension Cord
This appliance cord is equipped with a GFCI, do not use extension cords. If the appliance cord is not equipped with a GFCI, the appliance and any extension cord used should be connected only to a GFCl-protected power source.
1. Use only extension cords that have grounding-type plugs and female cord connectors that accept the plug from the product. 2. Use only extension cords that are intended for outdoor use. These extension cords are identified on the packaging or on the cord by a marking “Acceptable for use with outdoor appliances; store indoors while not in use.” 3. Use only extension cords having an electrical rating not less than the rating of the product. 4. Do not use a damaged extension cord. Examine extension cord before using and replace if damaged. 5. Do not abuse extension cord and do not yank on a cord to disconnect. 6. Keep cord away from heat and sharp edges. 7. Always disconnect the extension cord from the receptacle before disconnecting the product from the extension cord.
WARNING
To reduce the risk of electrocution, use only a GFCIprotected extension cord or plug into GFCI outlet. Keep all connections dry and off the ground. Do not touch plug with wet hands.

12

Assembly and Initial Set-up
Step 5. Moving and Handling
WARNING: Lifting hazard
The pressure washer is heavy. It can crush and cause serious injury if it rolls out of control or tips over. Follow the instructions below for safely moving the pressure washer.
Moving your pressure washer around
· Use handle to manually move pressure washer. · To turn, push down slightly on handle and pivot
pressure washer on its back wheels. Do not move or operate crosswise on a slope. High center of gravity can cause tipping. · Lock wheels with brake to prevent inadvertent movement. · Never pull by hose. Do not move this machine by pulling on the hose. Hose or connections could fail and result in catastrophic high-pressure release of fluid as well as hose whipping.
To reduce risk of injury, do not attempt to manually lift the pressure washer. Use a shallow ramp to raise or lower pressure washer to a different elevation.

Fig.1574210_7

HANDLE
13

Before Each Use

Follow the steps below prior to each use.
Step 1: Inspect Equipment
Electrical
· Inspect cord before using. Do not use if cord is damaged.
· Connect only to properly grounded outlet. · Keep all connections dry and off the ground. · Do not touch plug with wet hands. · If product is provided with a GFCI built into the
power cord plug, use only identical parts if replacement is necessary.
Pump Oil
· Check oil level with sight glass (or dip stick). If low, add type of oil indicated below.

CAUTION

Pump

Model

Oil Type

GP EVO GP EP1812

1574210 1574213

SAE 30 Non-Detergent Oil or Pressure Washer Pump Oil
(Part# 4043)

CAT 4DX 1574211 CAT 4DNX 1574212

SAE 30 Non- Detergent Oil or
Cat Pump Oil part # 22158

Never run the pump without sufficient lubrication!

· Replace oil fill cap after any additions.

Spray System
Because of the high-pressure fluid hazards, a special check must be made before each use to look for signs of wear, cracks, looseness or leaks in the hoses, fittings, wand, trigger gun and connections. See special instructions for checking and repairing high-pressure hoses within the “Maintenance & Repair” section.
· Check and clean nozzle orifice. · Clean garden hose water inlet filter. (See
Maintenance instructions.)
WARNING: High pressure fluid injection hazard
High-pressure fluid discharge from leaks (even pinsized) or ruptured components can pierce skin and inject fluid into the body. Injection injury can result in blood poisoning and/or severe tissue damage leading to infection, gangrene, and possibly amputation.

WARNING: Respond to fluid injection immediately
If injured by high-pressure fluid, no matter how small the wound is, see a doctor at once. A typical injection injury may be a small puncture wound that does not look serious. However, severe infection or reaction can result if proper medical treatment is not administered immediately by a doctor who is familiar with injection injuries.
· Never use a finger or skin to check for leaks. · Never operate machine with damaged or missing
hoses/parts. · Never attempt to repair a high-pressure hose or
component ­ always replace it with part that is rated at or above the pressure rating of this machine.
Burner Fuel System (if heated water to be used)
Inspect Burner fuel system for leaks BEFORE starting pressure washer. Look for:
· Signs of leaks, wetted areas, or deterioration · Chafed or spongy fuel hose · Loose connections · Loose or missing fuel hose clamps · Damaged fuel tank
WARNING: Fuel leak hazard
Burner fuels are highly flammable and fuel leaks can result in fire or explosions. You can be burned and seriously injured if there is a fuel leak when you start the pressure washer.
Periodic Maintenance
Other periodic maintenance is listed within the “Maintenance & Repair” section.
Note: Do not start pressure washer until all needed repairs have been completed.
Step 2. Check and Fill Burner Fuel Tank
If you are planning to use heated water, check level of burner fuel tank. If fuel is needed, use #1 or #2 diesel, B5 or lower biodiesel, kerosene or fuel oil. Use these precautions each time you fill:
1. Regularly inspect fuel systems for leaks. 2. Fill fuel tank OUTDOORS- never indoors, and
stay away from all sources of heat, sparks and flames. 3. Use an UL approved portable container to transfer fuel to machine.

14

Before Each Use

Filling Burner Fuel Tank (if heated water to be used)
WARNING: Flammability hazard
Burner fuels are highly flammable. Turn the machine off and allow it to cool for at least 2 minutes before removing fuel cap; as a running or still hot burner is hot enough to ignite fuel.
After Machine Has Cooled: 1. Remove burner fuel cap. 2. Add fuel through the fill opening. Do not overfill. Allow at least 1/2″ of empty space below fill neck to allow for fuel expansion. 3. Replace fuel cap securely before starting burner. 4. Clean up fuel spills/splashes immediately. · If possible, move the machine away from spilled fuel on the ground. · Wipe up spilled fuel and wait 5 minutes for excess fuel to evaporate before starting burner. · Fuel soaked rags are flammable and should be disposed of properly. · If fuel is spilled on your skin or clothes, change clothes and wash skin immediately. 5. Store extra fuel in a cool, dry place in an ULapproved, tightly sealed container.
Step 3. Select Suitable Worksite Guidelines
WARNING: Location hazard
You must choose a suitable site for operating your pressure washer to avoid equipment damage and/or injury and possible death from carbon monoxide poisoning, fire/explosion, uncontrolled equipment movement/tip over, or slips and falls. While designed primarily for outdoor usage, this electric powered pressure washer may be used inside large commercial buildings if special additional precautions are taken. See below.
For All Indoor and Outdoor Uses
Placement of the Machine: · Where it will NOT be exposed to rain, snow, or direct sunlight. Exposure to water can cause electric shock. · Where no flammable vapors, dusts, and gases are present. · At least 7 feet away from combustible materials (when burner used).

· Away from all building windows and air intakes (when burner used).
· Away from other heat-generating equipment.
Positioning: · The pressure washer should be positioned on a firm, level (less that 3-degree slope), heat resistance surface with good drainage and a nearby water supply. · Ensure that the pressure washer sits level and will not slide or shift during operation. If applicable, block the pressure washer’s wheels to prevent movement. Surface should be heat resistant if you will be using the burner for heated spray. · Block wheels to prevent movement.
Airflow: · Provide for adequate, unobstructed airflow for cooling and combustion air. · Do not allow debris to accumulate or block airflow. · Do not operate with a tarp, blanket, or cover surrounding the machine. · Do not place any objects against or on top of the unit.
Electrical Precautions: · To reduce the risk of electrocution, keep all cord connections dry and off the ground. · Do not touch plug with wet hands.
For Indoor Hot Water/Burner Use
Exhaust: · Hot fumes from burner must be exhausted through a hood or piped to the outside. · Place the unit so that the exhaust fumes will not be directed towards people or building air intakes. Precautions: · Keep a fire extinguisher rated “ABC” nearby. Keep it properly charged and be familiar with its use. · Ensure that working, battery-operated or battery back-up carbon monoxide alarms are used in any structure that is in close proximity to the running pressure washer.

15

Before Each Use
· An abundant amount of air must be available for proper combustion and cooling. Do not install in small, enclosed areas without an ample circulation of supply air.
· For more details, refer to NFPA 31: Standard for the Installation of Oil- Burning Equipment. Chapter 5 provides guidelines on how to ensure adequate air is provided for safe combustion.
DANGER: Carbon monoxide poisoning hazard
Exhaust fumes from the burner contain carbon monoxide (CO), a poisonous gas you cannot see, smell, or taste. The CO generated by the pressure washer can rapidly accumulate, even in areas that appear to be well ventilated, resulting in dangerous and fatal concentrations within minutes. ONLY run pressure washer outdoors and away from air intakes. NEVER run pressure washer inside any enclosed or semi-enclosed spaces, including homes, garages, basements, sheds, boxes, pick-up truck beds, RVs, or boats. These spaces can trap poisonous gases, EVEN if you run a fan or open windows. If you start to feel sick, dizzy, or weak while using the pressure washer, shut off the motor and get to fresh air RIGHT AWAY. See a doctor. You may have carbon monoxide poisoning.
16

Operation

Step 1. Connect Hoses, Water Supply, and Spray Nozzle
Note: The electrical power and pump are both off during Step 1 procedures.
Attach Garden Hose to Water Supply
1. Acquire a suitable garden hose:
· The water supply garden hose must have an inside diameter of at least 5/8″. If the hose is more than 100 ft. long, the diameter must be at least 3/4″.
· Always use a flexible rubber hose for your water supply. Do not use rigid piping.
· The use of a backflow preventer on the supply hose is recommended and may be required by local code.
2. Attach garden hose to water supply.
Check Water Supply
· Make sure the water supply is clean. Debris can cause excess pump wear and reduce performance.
· Make sure the water supply is steady and capable of flowing at a rate 20% over the rated flow of your pump. An insufficient water supply will damage your pump. Use a stopwatch to time how long it takes to fill a 5-gallon bucket with your garden hose. It should take less than 100 seconds.

WARNING: Incompatable component hazard
NEVER operate this pump with components (such as hose, connections, and spray gun) rated for lower pressure and/or temperature limits than the machine’s maximum rated pressure and temperature, or component will likely rupture and cause serious personal injury from escaping high pressure fluids.
Quick Connect Procedure
· Pull quick connect collar back (Figure 9a). · Push hose or nozzle firmly against stop. · Let go of collar (Figure 9a). · Pull (hose or nozzle) to assure a tight connection.
Coupler
Water Outlet
Collar Figure 9a

Connect Water Supply to Pump
· Confirm rubber washer and inlet filter screen are in water pump inlet. (See “Component Identification” section for location of water inlet)
· Run water through garden hose for 30 seconds to clean out debris. Turn off water.
· Connect garden hose to water pump inlet on pressure washer and turn on water valve.
Connect Pressure Hose to Pump
Uncoil high-pressure hose. Attach quick connect end of hose to pressure washer’s water outlet and other end of high-pressure hose to spray gun by following the “Quick Connect Procedure” below.

Correct Insertion
Collar Seated

Not Fully Inserted
Collar NOT Seated

Figure 9b

Figure 9c

Select Spray Nozzle
Five high-pressure nozzles and one low-pressure nozzle are supplied.
Note: A wider angle produces a lower impact pressure on surface. Nozzles from other sources may not fit the coupler and become a hazard.

Color of Nozzle:
Yellow
Green White Black (Low Pressure) Orange

Spray Angle
15º
25º 40º 65º 15º

Used For:
Tough Stains/Stripping
General Light Cleaning
Chemicals Steam

17

Operation

Note: Use only the black low-pressure nozzle for spraying chemicals, which provides the proper mixing ratio.

Attach Nozzle to Spray Gun
WARNING: Depressurize first Any time you remove/install/change a nozzle, you must depressurize hose line by squeezing the spray gun trigger while the Motor is off. Even if the Motor has been off for a long period of time, the hose may remain dangerously pressurized.
Nozzle
Trigger
1. Make sure the Motor is off and the hose line depressurized.
2. To install the nozzle, pull the collar back and twist the nozzle firmly into the coupler on the end of the wand. (Fig. 10a)

Nozzle

Figure 10a

Coupler Collar

Lance

3. Release the collar, making sure it springs back and re-seats to its original (non-retracted) position. (Fig. 10b). Check the connection by pulling on the nozzle to ensure a tight connection — if correctly inserted, nozzle will rotate but not pull out.

WARNING: Projectile hazard
Sprayer nozzle can become a projectile and cause serious personal injury or damage if not properly connected to the spray gun.

Correct Insertion

Not Fully Inserted

Figure 10b

Collar

Collar NOT

Step e2d. Pre-Spraying Procedureed

Safety Rules
Prevent slips/loss of balance. High-pressure spray could cause you to lose balance from kickback forces, and wet surfaces can be slippery.
· Keep good footing and balance at all times. · Do not overreach. · Do not stand on unstable support when spraying. · Use extreme caution when spraying from a ladder
or scaffolding, ensure it is firmly anchored from sway or tip-over. Use extreme caution to avoid falling as spray gun kick can propel you off the ladder or scaffolding. · Be aware of puddles and slippery surfaces. Ensure there is adequate drainage to prevent pooling of water.

Keep spray away from electrical wiring. Spray contact with electrical wiring will likely result in severe electrical shock or electrocution.

Keep spray away from people. Never direct discharge stream at or near any person. Do not allow any part of the body to come in contact with the fluid stream.

Prevent surface damage & flying debris. Surfaces being sprayed must be strong enough to withstand highpressure spray, or damage may result. In addition, highpressure spray will dislodge unsecured objects, surface chips, and debris, resulting in hazardous flying objects that can cause personal injury or property damage. Do not spray brittle surfaces or breakable, fragile, unsecured objects, such as:
· Stucco or laminar flagstone · Some painted surfaces · Windows or glass doors (because they may
break) · Light fixtures, flowerbeds, mailboxes · Unsecured, lightweight objects

18

Operation

Prepare to wash small parts in a basket so the pressure does not push them away. Clamp down larger, lightweight parts.
Personal Protective Gear
WARNING: High pressure spray hazard
· High pressure spray can cause injection injury, eye injury, and loss of balance. Serious injury could result from unintentional release of high- pressure spray from the gun upon engaging the trigger.
· ALWAYS turn power switch to OFF position and relieve system pressure when leaving pressure washer unattended.
· Total Start/Stop feature allows temporary motor shut-off (STOP) when the trigger is disengaged and allows motor turn-on (START) when the trigger is reengaged. This feature should NEVER be used to shut-off pressure washer when not in use.
When operating the machine, wear: · Waterproof, thermally insulated gloves · Safety glasses with side and top protection · Protective clothing · Non-slip, protective footwear · Respirator or mask to avoid inhalation of vapors if directed on the chemical label (if spraying chemicals).
Purging
Note: Pressure washer will first be purged using water supply pressure only, not pressure washer pump. Do not plug electric pump in yet.
· Turn on water supply. · Disengage safety latch and squeeze trigger to attain
a steady stream of water. This purges the pump of air and impurities. · To prevent accidental spraying, engage the safety latch on spray gun trigger by rotating it to the locked position.

Spraying Procedure
· Never run the machine without sufficient pump oil or sufficient water to cool the pump.
· Hold the spray gun firmly with two hands and a sturdy stance (gun kicks back when triggered).
· Nozzle should be 12″ to 24″ from the work, closer for tough areas.
· Disengage safety latch and start spraying at the top using long, even, side- to-side, overlapping passes.
· The pressure washer is set and locked to the maximum rated pressure when it leaves the factory. To reduce the pressure, turn the Unloader knob counterclockwise (Fig.1574210_9).
· If temporarily stopping, interrupting spray, rotate trigger safety latch downward to the locked position to guard against accidental trigger release.
Note: Do not attempt to secure the spray gun open by blocking or tying the spray gun in the on position. Uncontrollable hose whipping can occur if grip is lost.
· Always turn off the motor by turning Power switch off and then activate spray gun trigger to relieve system pressure when:
· The sprayer is unattended, or when · Disconnecting hoses, installing/cleaning
nozzles, or servicing the pump.
Using Chemicals for Cleaning (if desired)
Use only NorthStar pressure washer chemicals or chemicals specifically formulated for use with pressure washers. Don’t use acids, corrosives, or abrasive or flammable liquids. Breathing hazards, surface burns/corrosion, or fire/explosion could result.

0041
Figure 11

Safety Latch

Follow the Chemical Manufacturer’s Label Instructions When Handling or Spraying Chemicals:
· Understand all safety hazards and first aid for all chemicals being used.

Step 3. Spraying
· Make sure you have attached the appropriate spray

UNLOADER

nozzle.

· Clear the cleaning area of all persons. Keep

children and pets away.

FOR 1574210

Starting
· Plug unit into a grounded outlet. Press RESET on

UNLOADER

the GFCI (if applicable).

· Start motor to power the pump by turning Power

Switch ON.

FOR 1574213

19

UNLOADER FOR 1574211, 12
Fig.1574210_9

Operation

· Wear protective gear as directed. Always wear protective gloves when handling and cleaning.
· When cleaning filters, check whether dangerous chemicals have been used with the filter and take any precautions that may have been recommended by the supplier of these chemicals.
· Always dispose of hazardous fluids per local, state, and national guidelines.

· Rinse with high-pressure spray, either hot or cold. · Turn heat switch ON and adjust thermostat to desired temperature. (For steam spraying, set
temperature at 212F or higher and use YELLOW nozzle.) · Burner will only fire as trigger is squeezed ­ follow instructions for spraying.

CAUTION: Chemical mixture
The special NorthStar braided chemical hose when placed within a liquid and attached at the pump’s chemical injection port will inject 1 part chemical to 15 parts water. Chemicals must be pre-diluted in accordance to instructions to accommodate the additional 15:1 dilution ratio which will occur in the pump.

PUMP

FOR 1574210

PUMP OUTLET

PUMP

FOR 1574211 & 12

PUMP INLET

DILUTED CHEMICAL

STRAINER

PUMP INLET DILUTED CHEMICAL

FOR 1574213

STRAINER

Chemical Spraying Preparation: · Prepare (dilute) cleaning solution as required for the job. (Recall that this chemical solution will be automatically mixed in the pump with water at a ratio of 15 parts water to 1 part diluted chemical solution.) · Press braided chemical hose over the pump’s chemical injector. · Submerge suction strainer connected to braided chemical hose into chemical solution bucket. · Make sure the BLACK nozzle is attached to spray wand before beginning to spray chemicals ­ High-pressure nozzles cannot apply chemicals. · Warm or cold water can be used. If warm water is specified on chemical label, start burner according to the instructions in the following section, “Hot Spray Procedure.”

HIGHPRESSURE OUTLET
DILUTED CHEMICAL

CHEMICAL INJECTOR
STRAINER

Fig.1574210_8

Chemical Spraying Procedure: · Disengage safety latch and apply chemicals evenly to the cleaning surface working from bottom upward, using long, even, and overlapping passes. · Allow chemicals time to react with dirt before rinsing. Do not allow the chemical to dry on, reapply as needed to prevent surface from drying.

Rinsing: · Change to a high-pressure nozzle for rinsing. Changing to a high- pressure nozzle will automatically stop the flow of chemicals into the water stream.

20

Operation
Hot Spray Procedure
CAUTION: Metal burn hazard
Use of burner will make spray gun hot. Avoid touching wand. Serious burns from hot metal could occur if touched.
· Before starting burner, make sure vicinity is free of flammable vapors, dust, gases, or other potentially combustible materials. Operate only where open flame or torch is permitted and neither flammable vapors nor combustible objects are present.
· Ensure there is fuel in burner fuel tank. · Wait before re-lighting burner. NEVER attempt to
immediately re-light the burner if it doesn’t ignite the first time. Unburned oil or gas may have accumulated, causing potential explosion or fire hazard. · Burner automatically turns off when trigger is released or when temperature setting is reached. Note: If burner exhaust is white, adjust burner for peak performance. See “Oil Burner Adjustment” section towards the back of this manual.

For Model 1574210
1.Turn heat switch to OFF position. 2.Spray cold water for two minutes. 3.Turn power on/off switch to OFF position. 4.Turn water supply OFF. 5.Squeeze trigger to relieve system pressure.

For Model 1574211, 12 and 13
1.Turn thermostat knob to OFF position. 2.Spray cold water for two minutes. 3.Turn heat switch to OFF position. 4.Turn power on/off switch to OFF position. 5.Turn water supply OFF. 6.Squeeze trigger to relieve system pressure.

DANGER: Carbon monoxide poisoning hazard
Exhaust fumes from the burner contain carbon monoxide (CO), a poisonous gas you cannot see, smell, or taste. The CO generated by the pressure washer can rapidly accumulate, even in areas that appear to be well ventilated, resulting in dangerous and fatal concentrations within minutes. ONLY run pressure washer outdoors and away from air intakes. NEVER run pressure washer inside any enclosed or semi-enclosed spaces, including homes, garages, basements, sheds, boxes, pick-up truck beds, RVs, or boats. These spaces can trap poisonous gases, EVEN if you run a fan or open windows.
Step 4. Stopping
Stop the Motor using the following steps:
WARNING
Never disconnect the high-pressure hose from the highpressure outlet or spray gun while the system is pressurized, relieve pressure by squeezing the spray gun trigger after the motor is turned OFF.

21

Storage

Between-Use Storage
Before storing, let machine cool for at least 5 minutes, as a hot engine can be a fire hazard. Place in a secure location where it will not be started by untrained persons.

RV Antifreeze Supply Bucket

Hose

Outlet

An appropriate storage location is: · Clean and dry. · Away from sources of heat, open flames, sparks or pilot lights, even if the and burner fuel tank is empty. (Residual fuel vapors from tank can ignite.) · Away from extreme high or low temperatures. (Do not store the unit in freezing conditions unless it is prepared as directed in “Winter Storage Preparation.”)
Long-Term Storage Preparation (between infrequent uses and at end of season)
Prepare for long-term storage if you will not be using machine again for more than 30 days. Fuel can become stale when stored over 30 days. Stale fuel causes acid and gum deposits to form in the fuel system which can cause the machine to malfunction. To avoid problems, the fuel system should be emptied or treated with a fuel preserver before storing the machine longer than 30 days.
Winter Storage Preparation
Machines containing water for cooling or those that use water during operation need special preparation for storage during the winter (or freezing) months to prevent water from freezing in the system.
Note: Long-term storage is treated differently than between-use storage. Do not allow water to freeze in the pressure washer, high-pressure hose, or spray gun. Freezing water will cause damage to the equipment and can cause the spray gun to fail in the open position. A spray gun that has failed in the open position can whip around and cause personal injury when the pressure washer is started. Winterize as follows: Material List: 1. Two 5-gallon buckets
2. 4-5 foot long garden hose or equivalent (recommend 5/8″ to ¾” diameter with male ¾” Garden hose threads on one end)

Spray Bucket

Fig.1574210_10
Procedure:

Inlet Hose

1. In a 5 gallon pour at least 2 gallons of environmentally safe antifreeze. Note: whether using undiluted or pre-diluted antifreeze, follow manufactures mixing guidelines to ensure proper freeze protection.
2. Elevate bucket so it is higher than the unloader. 3. Connect a 4-5-foot- long garden hose or
equivalent to inlet connection. 4. To ensure good priming fill hose with water or
antifreeze mix before placing end into 5-gallon bucket of antifreeze. 5. With the nozzle removed, trigger gun off, and with burner off point trigger gun into a second empty 5-gallon bucket and start the unit. 6. With unit running, spray into the empty bucket for several seconds then release trigger for 2 seconds. Continue cycling the trigger gun multiple times until all the antifreeze has be drawn from the supply bucket. Note: if system was completely flushed you should see antifreeze in the spray bucket. 7. With unit shut off, remove hoses and drain excess antifreeze into spray bucket. 8. Properly dispose of antifreeze according state EPA laws.

22

Storage
Alternately the system can be blown out with compressed air: Note: although this method can be effective for winterizing, the above antifreeze method is preferred because it ensures the entire plumbing system is flushed and lubricated.
Materials: 1. Properly rated fittings (80 psi or higher) to connect air supply to inlet connection (¾” garden hose) on pressure washer. 2. Air compressor with regulator able to set pressure between 60-80 psi.
Procedure:
1. Connect hose and gun to outlet connection. 2. Connect air supply to inlet connection, ensuring
regulator is set no higher than 80 psi. 3. Pull trigger on gun (with nozzle removed) and
allow air to push water out of plumbing. Continue hold trigger gun open until water stops coming out of. 4. Turn off air compressor and pull trigger on gun to relieve any trapped pressure in the system. 5. Disconnect air compressor, hose, and trigger gun. 6. Remove thermal relief valve located at the bottom of the unloader (see Component identification page) and allow water from the bypass loop to drain out. Once drained reinstall thermal relief fitting.
Prepare the pressure washer for storage
1. Make sure the Motor start switch is OFF. 2. Disconnect the high-pressure hose, garden
hose, and spray gun.
Let Pressure washer cool for 5 minutes before moving the pressure washer to its storage location.
23

Maintenance & Repair

WARNING: Maintenance hazards
ALWAYS shut off water supply, bleed water pressure, turn off motor and unplug electrical cord before cleaning, adjusting, or servicing the pressure washer. After servicing, make sure all guards and cover shields are replaced before using. Follow all safety rules and recommended maintenance instructions. If a part needs replacement, only use factory approved repair parts. Replacement parts that do not meet specifications may result in a safety hazard or poor operation of the pressure washer and will void the warranty.

Maintenance Schedule

Item Dust/debris removal Inspect fuel system Inspect spray system Clean inlet filter for garden hose Check tire pressure
Change pump oil
Drain burner’s fuel filter / water separator
Descale heating coil
Inspect and clean flow switch Inspect heating coil and desoot if needed
Inspect/clean/adjust electrodes Perform engine maintenance

Frequency As needed, when visibly present
Each use Each use Each use Each use Each use After first 40 hours of use Every 3 months or 500 hours of use after that Drain water as needed Change filter after 500 hours of use or annually
Annually, or more frequently as use and performance require (see instructions) As needed Annually Annually
See Engine Owner’s Manual

Detailed Instructions ­ Maintenance & Repair

Dust/Debris Removal
Do not allow air intakes to become blocked. If dust or debris accumulates on the pressure washer, clean with a damp cloth or soft bristle brush.

· Damaged fuel tank
Inspect Spray System
WARNING: High pressure fluid injection hazard

Do not spray pressure washer with a garden hose or pressure washer to clean. Water may enter parts of the pressure washer which will cause damage. Cleaning should be done with a damp sponge with the motor OFF.
Inspect Fuel System(s)
Look for: · Signs of leaks, wetted areas or deterioration · Chafed or spongy fuel hose · Loose connections · Loose or missing fuel hose clamps

High-pressure fluid discharge from leaks (even pinsized) or ruptured components can pierce skin and inject fluid into the body. Injection injury can result in blood poisoning and/or severe tissue damage leading to infection, gangrene, and possibly amputation.
· Never use a finger or skin to check for leaks. · Never operate machine with damaged or missing
hoses/parts. · Never attempt to repair a high-pressure hose or
component ­ Always replace it with a part that is rated at or above the pressure rating of this machine.

24

Water dripping or spraying, or localized
moisture

Maintenance & Repair

section of this manual to determine the type of pump that came equipped with this pressure

washer)

a. For GP pumps: Use SAE30 non-detergent oil

Good

or Pressure Pump Oil Item #4043 b. For Cat pumps: Use SAE30 non-detergent oil

or Cat Pump Oil Item #22158. · Replace oil fill cap.

Drain Burner’s Fuel Filter/Water Separator

Bad

Drain water from burner’s filter bowl as needed. Replace

filter after every 500 hours of use or annually.

· Important: Always empty the burner’s fuel tank

before removing the filter bowl.

· Check the filter bowl after each use of burner.

Bad
Exposed wire mesh
due to wear Figure 15 ­ Hose Inspection

· Carefully check hoses, fittings, wand, trigger gun and connections for signs of wear, cracks, looseness, or leaks.
· Replace before use if damaged or not functioning properly.
· Check and clean the orifice of nozzle to be used.
Clean Inlet Filter for Garden Hose
· Unscrew garden hose from water inlet (if connected).
· Remove filter screen from water inlet. · Run water through filter screen to clean. · Reassemble.
Check Tire Pressure
· Remove air cap on tires. · Check tire pressure. · If needed, fill tire to 30 psi. Do not over inflate. · Replace air caps.
Change Pump Oil
After the first 40 hours of use, and then every 3 months or 500 hours of use after that.
· Remove drain plug from pump. (See Fig.1574210_6 earlier in the manual.)
· Drain pump oil into suitable container and dispose of according to local regulations.
· Reinstall oil drain plug. · Make sure unit is sitting level. Fill pump with type
of pump oil specified below. (See “Specifications”

WATER DRAIN

FILTER BOWL

Fig.1574210_11
DIESEL FUEL TANK
Drain accumulated water via water drain at the bottom of the bowl. · After every 500 hours of operation or annually, empty the burner’s fuel tank to remove the filter bowl and inspect the fuel filter/water separator.

Descale Heating Coil
If pressure washer is used where the water source contains a high mineral content, or is considered “Hard Water”, scale can build up inside the heating coil tubing. Scale deposits will decrease the performance of pressure washer by reducing both water flow and water pressure. The use of a water softener and an additional strainer may be needed in areas that have high mineral content in the water supply. More frequent descaling may be required if higher temperatures or steam mode is used regularly. Descale the coil tubing more frequently if you detect a decrease in pressure or temperature.

CAUTION: De-scaling burn hazard
Do not run the burner while de-scaling.

25

Maintenance & Repair

Choose a well-ventilated area and use the recommended PPE (personal protective equipment) of the coil cleaning chemical manufacture when descaling the coil and/or using coil cleaning chemicals. This may include, but is not limited to:
· Rubber Gloves · Goggles · Apron
Required supplies: 1. Coil cleaner 2. 5-gallon bucket 3. Circulating pump 4. Supply hose A 5. Supply hose B 6. Return hose 7. Hose barb fittings, if applicable 8. Hose clamps, if applicable
WARNING
SCALE BUILD-UP/EXPLOSION HAZARD
· Failure to properly maintain the coil can result in a stream explosion.
· Scale or lime build-up will act as an insulator and decrease coil efficiency.
· Weakling of the coil tube due to hot spots can result in a coil rupture.
CHEMICAL EXPOSURE HAZARD · Always wear properly rated safety goggles when
descaling the coil. · Always wear rubber gloves when handling coil
cleaning chemical. · Understand all safety hazards and first aid
measures for coil cleaning chemical being used. · Follow coil cleaning chemical manufactures’
directions when handling, mixing and using coil cleaning chemical. Read owner’s manual. See maintenance section of manual for descaling procedure. Read the coil cleaning chemical safety information. Serious injury or death can result if safety instructions are not followed.
To descale the coil: 1. Connect hose(s) as shown below to the coil inlet,
coil outlet and the circulating pump. Do not hook up the pressure washer hose or gun.

2. Add commercial coil cleaner to water and mix. Use an acid resistant 5-gallon bucket.
3. Place the remaining end of the Return Hose into the 5-gallon bucket.
4. Place the remaining end of the Supply Hose B into the 5-gallon bucket. We recommend using an inlet filter screen on Supply Hose B.
5. Connect the power supply to the circulating pump. 6. Turn on the circulating pump to begin circulating the
coil cleaning solution. 7. Run the circulating pump for 1 to 3 hours (follow coil
cleaner manufacturing instructions), recirculating the coil cleaning solution. CAUTION: Do not run the pressure washer or the burner. 8. Dispose of the cleaning solution where it is not harmful to animals or the environment. Follow the coil cleaner manufacturers disposal instructions. 9. Fill the 5-gallon bucket with fresh water. 10. Place the end of Return Hose back into the 5-gallon bucket with fresh water. 11. Place the end of Supply Hose B back into the 5gallon bucket with fresh water. 12. Turn on the circulating pump to begin circulating the fresh water. 13. Run the circulating pump for 5 minutes, recirculating the fresh water. 14. Repeat steps 11-15 at least 3 times to ensure all remaining coil cleaning residue has been flushed out with fresh water. 15. Reinstall the outlet coil quick connect nipple fitting to the coil outlet. 16. Reinstall the inlet coil swivel fitting to the coil inlet. 17. Attach the high-pressure hose(s) to the highpressure outlet on the machine. 18. Flush with fresh water and clean the garden hose water inlet screen when finished.
3/8 FEMALE NPT COIL OUTLET

SUPPLY HOSE A

1/2 FEMALE NPT1/2HOSE BARB COIL INLET
CIRCULATING PUMP CONNECTION A

RETURN HOSE

CIRCULATING PUMP

CIRCULATING PUMP CONNECTION B
SUPPLY HOSE B

OUTLET COIL

INLET COIL

QUICK CONECT NIPPLE FITTING

Fig.1574210_12

SWIVEL FITTING

26

5 GAL. BUCKET
Fig.1574210_13

Maintenance & Repair
Inspect and clean the flow switch as needed
Mineral build-up and/or debris within the flow switch can occur and may affect burner operation if not periodically cleaned. Mineral build-up and/or debris can stop the movement of the shuttle inside the flow switch body. Shuttle movement is important because the burner will not fire if the shuttle does not move. The shuttle movement actuates a switch inside the flow switch housing which allows the burner to fire during spray mode.

1. Disconnect the swivel fitting from elbow to the inlet of the coil
   Swivel Fitting

Shuttle Assembly (Side View)
Magnet

Shuttle Assembly (Bottom View)

4. Observe the “Shuttle Assembly” and internal

portion of “Body” for obstructions, hard water

deposits and any other foreign debris. Remove

the foreign debris with light scraping or

2. Remove the “Cap” fitting from the flow switch.

compressed air. If no additional cleaning is required continue to Step 7. If additional

Cap Fitting cleaning is required continue to step 5.

3. Slide out the “Shuttle Assembly”. If the magnet in the shuttle assembly is damaged or missing, replace the entire flow switch assembly. To order a replacement flow switch assembly, call NorthStar Product Support at 1-800-270-0810.

Internal Sections
5) Remove the “Body” from the plastic “Enclosure” and soak the “Body” in CLR or similar solution to dislodge excess buildup. The screws (QTY 5) in the “Enclosure” are TORX T10.

27

Maintenance & Repair

TORX T10 Screw

Cap Fitting; Torque to 100lb-in

Enclosures

Body
6) Rinse “Body” 7) When cleaning is complete reinstall the “Body”
into the “Enclosures”, taking care not to cause damage. Tighten the “Screws” into the body until they are snug. Do not over-tighten the screws. 8) Insert the “Shuttle Assembly” with the rounded end first, into the body. Align with grooves.
Body (female Guides)

10. On the elbow on the inlet of the coil, remove any remaining thread tape/sealant. Re-apply new thread tape/sealant on the elbow. Reconnect the swivel to the elbow. Hand-tighten the swivel onto the elbow, and once snug, using a wrench continue to tighten the swivel two additional revolutions.
    Inspect Heating Coil and Desoot as Needed
    Most coils never require desooting. However, poor grades of fuel oil or inadequate combustion air will cause heavy soot build-up on the outside surface of the heating coil tubing. These deposits will insulate the coil, which then restricts air flow through the heat exchanger and further aggravates the soot build-up. Be sure to wipe the sight glass. See Fig06172 on next page.
    If soot has built up on the exterior of the coil tubing, clean as follows:

Shuttle (RMoaluenTdabesd) End First
9) Inspect the O-ring on the “Cap”, if it is damaged, replace the entire flow switch assembly. To order a replacement flow switch assembly, call Northstar Product Support at 1-800-270-0810. If the O-ring is not damaged, re-install the “Cap” onto the “Body”. Torque the cap to 100lb-in. 28

1. Wear Protective clothing, goggles, and gloves. 2) Disconnect Fuel line from outer cover.
   Disconnect Flame sensor and High Tension Leads from black box bolted to the guard on side of Outer Wrap. 3) Remove (4) 5/16″ Bolts from Outer Cover. 4) Remove Outer Cover set aside. 5) Remove (4) 5/16″ bolts and nuts off the hold down brackets on the Outer Wrap. 6) Remove all inlet and outlet fittings. 7) Remove the (2) 1-1/4″ Jam nuts and the 3/8″ bolt underneath the base. 8) Lift off Outer Wrap, Inner Wrap and Inner Cover. Set aside.

Outer Cover Outer Wrap Inner Wrap

Maintenance & Repair
Inspect/Clean/Adjust Electrodes
Inspect electrodes yearly and replace as needed. 1) Loosen front (2) bolts using a 1/2″ socket. Loosen
side (2) bolts using a 1/2″ socket and wrench. 2) Remove (3) screws using a 5/32″ hex key Allen
wrench from the combustion head. Lift off combustion head from outer cover.
FRONT BOLTS (2)
SIDE BOLTS (2)

Inner Cover

Fig06842

Fig06843

Coil

Insulation
Gasket
Fig06288 9) Lift Using a couple of straps, wrap them around
the Coil and attach to a hoist to lift off. You may also use the lifting eyes with hooks to lift with hoist. This coil weighs at least 125 lbs. If no hoist is available, it is recommended that this become a 2-man job each with the ability to lift at least 65 lbs. 10) Clean the coil. 11) Reassemble the coil and lids to the machine. Make sure the white insulation remains in place. 12) Reattach high-pressure hose and thermostat and make sure all fittings are tight before using the machine.

3. Disconnect flame sensor and electrode wires. Disconnect fuel line.
4. Clean off carbon deposits, which may have accumulated on the tips of the electrodes.
5. If electrodes are outside of manufacturing specification, Replace electrodes.

ITEM#
1574210 1574211 1574212 1574213

Label dimension

A

B

C

.188

.188

.109

.486

.348

.109

NOTICE: Wipe combustion head flame sensor lens every 100 hours. If the flame sensor lens gets sooted up the flame sensor will be unable to sense a flame and therefore the burner will not fire. Do not contamminate or touch the fuel nozzle tip.

29

Maintenance & Repair
Instructions for inspecting: 1) Remove flame sensor bracket
Flame sensor bracket
Fig157115-4
2) Following normal starting procedure with burner and thermostat off. With unit running look through flame sensor sight glass to observe if there is a spark.
Perform Engine Maintenance
All mechanical equipment, no matter how well designed, will need maintenance and repairs. NorthStar Product Support will assist in these repairs as needed, but if an inoperable pressure washer creates a major expense to your business, then we strongly recommend the following:
· Have a staff person become familiar with the mechanical operation of the pressure washer and capable of making minor repairs and performing all preventative maintenance procedures.
· Keep a stock of recommended service parts for maintenance and minor repairs.
IMPORTANT
If a part needs replacement, only use parts that meet the manufacturer’s part number specifications. Replacement parts that do not meet specifications may result in a safety hazard or poor operation of the pressure washer.
Contact NorthStar Product Support at 1-800270-0810 for any questions, problems, or parts orders.
30

Oil Burner Adjustment (only needed if white exhaust smoke appears)

The oil burner is preset, and performance tested at factory elevation of 1100 feet. Different altitudes may require a one-time initial burner adjustment.
CAUTION: Improper fuel-air mixture
If white smoke appears from the burner exhaust vent during start-up or operation, discontinue use and readjust air bands.
Adjusting burner will require accessing it from underneath the pressure washer while someone else is operating the spray gun.
1. Locate the Air intake adjustment cover on blower housing (fig06839) below. Observe the position of the arrow on the cover relative to the calibration numbers. (For unit 1574213 0 is fully closed and 10 is fully open and for units 1574210, 11 & 1574212 0 is fully closed and 9 is fully open).
2. Make sure burner is cool to the touch before attempting adjustments.
3. Begin operation of the pressure washer and switch on the burner, as instructed in the operation section of the manual. Have someone operate the spray gun so the burner ignites.

Note: which number the arrow is near.
5. Slowly rotate air intake covers counterclockwise (open) until white smoke just starts to appear. Note: If no white smoke appears use fully opened calibration number for reference point.
6. Turn lever halfway back to the black smoke/rumbling sound position previously noted. Tighten the locking set screw.
7. Trigger gun on for 15 seconds and off for 5 seconds. Repeat this cycle 5-10 times. If not large puffs of white smoke are observed inlet air intake adjustment is complete. If large puffs of white smoke are observed on any reignitions this could be a sign that the air intake is opened to wide and will need further adjustment.
8. If large puffs of white smoke were observed in step 7, close air intake cover by half a calibration number. (example if calibration number is set to 5 then close intake cover to 4.5)
9. Repeat step 7 & 8 until unit re-ignites without large puffs of white smoke.

Note: Typical factory calibration is as follows: 1574210, 1574211 (between 2-5) 1574212 (between5-7), 1574213 (between 5-8).
LOCKING SET SCREW

Fig.06839 4. Locate and loosen the locking set screw
(fig06839) and rotate the cover clockwise (close) until either of following happens black smoke appears from the burner exhaust vent or a rumbling sound is heard.
31

Causes
Machine turned OFF Line circuit breaker tripped

Troubleshooting
Pressure Washer Will Not Run At All – No Power
Solutions
Turn Pump switch ON Check for tripped circuit breaker in building

Causes Voltage too low Circuit Breaker Overloaded Pressure set too high

Circuit Breaker Trips
Solutions Check the voltage Make sure there is no other equipment using the same circuit. Check/adjust pressure setting on unloader.

Pressure Washer Runs but Burner Doesn’t FIre

Causes

Solutions

Air

Air intake is blocked or restricted

Inspect & remove any blockages

Air leaking

Inspect rubber boot and connections between the heat exchanger and blower for

leaks. Replace boot or tighten connections

Improper air adjustment

See Burner adjustment section of manual

Fuel

Fuel tank empty

Fill fuel tank with diesel.

Fuel filter water separator is clogged or full of Drain or replace if needed

water

Clogged fuel nozzle

Replace

Fuel pump malfunctioning

Fuel solenoid, coupler, or pump itself may need to be replaced. Contact product

support.

Check fuel pressure and replace if needed

Ignition

Electrodes damaged or worn

Clean, adjust, or replace electrodes. See maintenance and repair section of manual.

Ignition coil failure or improperly gapped

see maintenance and repair section or contact product support

Other

Heat switch turned OFF

Turn heat switch ON.

Thermostat set too low or off

Set thermostat to desired temp (if equipped).

Trigger gun is not open

Open Trigger gun to allow flow

Flow switch failed or clogged

Clean or replace flow switch. See Maintenance and repair section of manual

Primary control board malfunctioning

Call Product Support.

Flame sensor

Call Product Support

Causes Low water flow Partially clogged or damaged nozzle

Low Pressure
Solutions Make sure the water supply is more than 4 gpm Clean or replace nozzle

Causes Air band not adjusted properly Poor quality fuel

Smoke from Heat Exchanger
Solutions Adjust the air band until the burner burns cleanly. See installation Instructions. Use kerosene for the cleanest burn.

32

Troubleshooting

Pressure Washer Runs but Surges or Cycles While In Bypass

Causes

Solutions

Leak between unloader and gun.

Check all connections between unloader and gun for leaks.

components and replace damaged components.

Gun leaking internally

Replace spray gun

Tighten loose

Causes Pressure Washer/Burner Control Problem

Rupture Disc Sprays Water
Solutions Call Customer Service.

Causes Soap control knob set too low. Inadequate detergent supply High pressure hose too long Chemical strainer or hose clogged Clogged injector

Poor Or No Detergent Supply
Solutions Adjust soap control knob Refill detergent container. Make sure the chemical strainer is fully submerged Use less hose. Move machine closer to the work. Clean the strainer. Always start with a clean detergent container Clean injector check valve or replace injector. Run clean water through the injector after each use.

33

Major Components
5
2 4

3

1 Fig.1574210_14

MAJOR COMPONENTS

Ref.#

Description

1

Frame

2

Heat Exchanger

3

Blower and Fuel Pump

4

Motor, water pump and fuel system

5

Accessories- Gun, hose, chemical injector

These components go into more detail on the following pages.

Page# 53 56 59 60 62

34

Parts Explosion: Frame

46 47 28

31 34

29

30

32 33

36

19

48

49

26 25 37

38

43
8 7 35 50 18

42

3 44 14
12

13

16

15

39

40

41

6

45

11 27
20
4

24 5

2

17

1 10

9

Fig.1574210_15

21

23

22

35

Parts List: Frame

ITEM

PART#

DESCRIPTION

1

799967 CORE WELDMENT

2

82008 NUT, 10-32 KEPS

3

800619 ISO MOUNT

4

788040 MANUAL TUBE

5

799875 BRAKE

6

777838 HEX PLUG, 1/4″ C. SUNK

7

800663 DECAL, NOZZLE OPTIONS

8

35198 GROMMET,7/16 ID-.125

9

82621 5/16-18 X .75 HHFB

10

82630 5/16 FLANGE NYLOC NUT

11

800080 HANDLE WELDMENT

12

800483 BUMPER

13

788999 LABEL, AC NORTHSTAR, NARROW

14

801056 DECAL, DIESEL ONLY SMALL

15

802744 PLATE- PW

16

82014 5/16″-18 X 1/2″ HHSF BOLT

17

82006 BOLT, #10-32 X ½” SHCS

18

777855 SWITCH, TOGGLE

87435 BOLT, 4-40 x 3/4″ PHIL PAN ZN 19
87435 BOLT, 4-40 x 3/4″ PHIL PAN ZN

20

38509 HOOK, THREADED GUN

21

800432 WELDMENT, AXLE 30″

22

305200 RETAINER, WHEEL – PW, TE

788813 TIRE 23
778295 TIRE, VALLEY TURF -PW

24

800593 BRAKE MOUNT

87961 4-40 NYLON INSERT LOCK NUT 25
87961 4-40 NYLON INSERT LOCK NUT

800186 SPACER, NYLON #4 26
800186 SPACER, NYLON #4

27

82019 NUT, 5/16-18 SER. FLANGE

28

803144 DECAL, OP INSTRUCTIONS-

29

82720 5/16-18 BLACK SHORT EXTRUDED U NUT

30

802983 PLATE, CONTROL BOX WIRE COVER – PW

22502 STRAIN RELIEF 31
22502 STRAIN RELIEF

803128 STRAIN RELIEF, 3/4″ (.276-.511″) – PW 32
803129 STRAIN RELIEF, 3/4″ (.492-.709″) – PW

33

803127 803127

STRAIN RELIEF, 3/4″ 2 HOLE (.34-.177″) – PW STRAIN RELIEF, 3/4″ 2 HOLE (.34-.177″) – PW

34

803142 803143

DECAL, CONTROL BOX, 1574210 – HWEPW DECAL, CONTROL BOX, 1574211-13 – HWEPW

36

QTY

MODEL

1

All

6

All

4

All

1

All

1

All

1

All

1

All

6

All

42

All

35

All

1

All

1

All

1

All

1

All

1

All

4

All

7

All

2

All

4

1574210

8 1574211, 12, 13

2

All

2

All

4

All

4

1574210, 11

4

1574212, 13

1

All

8

All

16 1574211, 12, 13

4

All

8 1574211, 12, 13

2

All

1

All

8

All

1

All

1

1574210, 11

3

1574212, 13

2

1574210, 11

2

1574212, 13

3

1574210, 11

2

1574212, 13

1

1574210

1 1574211, 12, 13

Parts List: Frame

ITEM

PART#

DESCRIPTION

35

802979 WELDMENT, CONTROL BOX COVER – PW

36

801601 CONTROL BOARD, PRIMARY, 110-230VAC – PW

778151 CONTACTOR, DP 120V/25A 37
778152 CONTACTOR, DP 230V/30A

38

802746 GASKET, CONTROL BOX HOTWATER

39

793645 CLIP, HOSE/WIRE

40

802984 WELDMENT, CONTROL BOX BACK COVER – PW

41

82651 RIV-NUT 5/16-18 GR .031-.157

42

802974 PLATE, FUEL/PUMP/MOTOR COVER – PW

43

789635 GROMMET, 3/16 GW X 1 GD – AC

44

779666 CLAMP, 1″ LOOP

45

803126 CLAMP, LOOP 5/16

777110 CLIP, HOSE 1/2″ – PW

46

797052 THERMOSTAT KNOB

47

802972 CONTROLLER, TEMP. ASSEMBLY – PW

48

801133 HOUSING, PLASTIC, MOLEX 39-01-2020 – PW

49

33390 TERMINAL, RING 1/4″ – PW

50

82007 10-32 x 3/4″ SHCS

QTY

MODEL

1

All

1

All

1

1574210, 11

1

1574212, 13

1

All

12

All

1

All

8

All

1

All

2

All

2 1574210, 11, 12

1

1574213

2

1574210, 11

2

1574212, 13

1 1574211, 12, 13

1 1574211, 12, 13

1

All

1

All

1

All

37

Parts Explosion: Heat Exchanger

1.3
1.1 1.2 1.13
1.6.1 18
1.6 1.25 FOR 1574213 1.22 17 1.23 1.8

1.4

1.35

1.36

1

1.24

1.27

1.38

1.37

1.7

14

1.21

1.34

1.32

1.9 2
1.11

1.29

1.12

1.30

1.5

1.19

1.33 1.31

1.20

1.10

3

13

11

1.14

19

15

13

6

Fig.1574210_16

8

38

1.15 1.16
1.17 1.18
1.26
1.12 1.28 1.27
4 16 5 7 9

ITEM 1 1.1 1.2 1.3 1.4 1.5 1.6 1.6.1 1.7 1.8 1.9 1.10 1.11 1.12 1.13 1.14
1.15
1.16 1.17 1.18 1.19 1.20
1.21
1.22
1.23
1.24 1.25
1.26 1.27 1.28 1.29 1.30 1.31 1.32 1.33 1.34 1.35 1.36 1.37 1.38 2

Parts list: Heat Exchanger

PART#

DESCRIPTION

QTY

N/A

Heat exchanger assembly

1

82621 Bolt, 5/16-18 x 3/4″ hex head flange

10

796266 Fuel line guard, top

1

797692 HX Fuel Line Guard, Top

1

798383 Decal, Flame Sensor Lens Cleaning Instructions

1

796496 Decal, Electrical Shock Hazard

1

793645 Clip, hose/wire

4

803105 Flame sensor

1

801133 Housing, Plastic, Molex 39-01-2020

1

803032 Fuel line

1

797037 Outer cover weldment, LG vent

1

797663 Outer cover XL

1

82630 Nut, 5/16-18 nylon insert lock

6

797649 Fuel line guard, side

1

82649 Blind rivet, 3/16″

14

21

82624 Bolt, 3/8-16 x 1″ hex head flange, Gr. 5

1

792262 High Tension Lead Wires

1

792130 792131

Inner wrap,

1 1

795761 Ring, air jacket 80mm

1

792283 Air Jacket Ring, 89mm x 24.3 mm

1

795764 Air Jacket Ring, 98mm

1

796702 Inner cover weldment

1

798379 Inner cover XL

1

82660 Rivet, 3/16 large flange

6

792248 Gasket

1

792135 Hold down bracket

4

802975 797466

Angled intake duct weldment

1 1

802737

1

792124 Outer Wrap

1

792126

1

792228 Diffuser 4 FIN 3 INCH.

1

796314 DIFFUSER 9 FIN 5.5 gpm

1

802973 Fuel nozzle, .75 60A GPH (1.5GPM)

1

802067 Fuel nozzle, 1.35 60 A GPH (2.5 gpm)

1

799677 Fuel nozzle, 2.00 90 B GPH

1

803677 Combustion head assembly

1

799293 Electrodes, HX

1

799294 Electrodes, HX+ 5.5

1

791882 Coil weldment, 85ft

1

791883 Coil wldt 105 ft.

1

792224 Gasket

1

792223 Insulation, firebrick

1

797513 Decal burn hazard

1

82606 Washer, 1″ ID x 2″ OD copper

2

82605 Nut, 1″-14 jam

2

792260 Igniter 120V

1

792261 Igniter, 230 Volt

1

82245 Screw

2

82065 10-24 Nylon Insert

2

82006 Screw, 10-32 X ½ SHCS Y/Z

2

801064 Flame Sensor Bracket Kit

1

82602 M5-0.8 X 16MM PHMS

1

784489 M5 SINGLE WAVE WASHER

1

788999

Label, AC Northstar, narrow

1

39

Model
All 1574210, 11, 12
1574213 All All All All All All
1574210, 11, 12 1574213 All All
1574210, 11 1574212, 13
All All 1574210, 11 1574212, 13 1574210, 11 1574212 1574213 1574210, 11, 12 1574213 All All All 1574210, 11 1574212, 13 1574210 1574211 1574212, 13 1574210, 11, 12 1574213 1574210, 11 1574212 1574213 All 1574210, 11, 12 1574213 1574210, 11 1574212, 13 All All All All All 1574210, 11 1574212, 13 All All All All All All All

ITEM 3
4
5 6 7 8 9 11 12 13 14 15 16 17 18 19

PART#
779847 800102 793966 799855 17141 797121 800127 797199 800126 800779 32821 800661 777915 793964 82004 82005 800096

Parts List: Heat Exchanger

DESCRIPTION

QTY

Adapter, 8MP-8FP – PW

2

Thermostat, Fixed 250°

1

NTC Thermistor 10Kohm

1

Fitting, coil inlet manifold

1

Clamp, 3/4″ Hose

1

Switch, flow 12.0 GPM 5000PSI-PW

1

Hose, 3/4″ rupture disk discharge

1

Fitting, 3/8″ MPTXSFPT elbow

1

Fitting, coil outlet manifold w/rupture disk

1

Connector, straight rubber

1

TFG Lanyard – GN

1

Decal, Branding

1

Nipple, QC 3/8, 3/8 FNPT-PW

1

High pressure Limit Switch

1

BHCS, 8-32 X 1/2 Y/Z

1

NUT, 8-32 KEPS

1

Fitting, Hex Nipple 4″

1

Model
All 1574210 1574211, 12, 13
All All All All All All All All All All All 1574213 1574213 All

40

Parts Explosion: Blower & fuel pump

ITEM 1
2
3
4 5 6 7 8 9
10
11
12
13 14
15
15.1 15.2 15.3 16 17 18

1

5

9 10 7 11 13 14 16
8 15 12 18

3
4 6
Fig.1574211_17

PART# N/A 82109 82109
802061 801874 801982 82613 792268 82088 792297 795015 82631 82631 792255 792256 82630 82630 82612 801448 792265 792266 798190 798628 RWB21756U 794146 82096 779666

DESCRIPTION ASSEMBLY FAN & HUB STATOR HHCS, GR5Z 3/8-16 X 3 1/4 HHCS, GR5Z 3/8-16 X 3 1/4 DAMPER, MED CAP – PW DAMPER, LARGE CAP – PW ASSEMBLY, AC HOUSING MED. INLET – PW M6-1X8 SET SCREW, KNURLED CUP FAN, 200MM X 47.5MM – PW BOLT, CARR GR5Z 5/16-18 X 3/4 MOTOR ADAPTER PLATE, AC – PW COUPLER, PUMP/MOTOR, AC, PW NUT, 3/8-16 HEX FLANGE NYLON NUT, 3/8-16 HEX FLANGE NYLON MOTOR, 250-WATT 120VAC MOTOR, 250-WATT 240 VAC 5/16 FLANGE NYLOC NUT 5/16 FLANGE NYLOC NUT M5-.8X10 SET SCREW, KNURLED CUP FITTING, 1/4″ HB X 1/4″ NPT PUMP, 120V FUEL – PW FUEL PUMP, 240VAC 120 VOLT COIL (NOT SHOWN) TUBE ASSEMBLY (NOT SHOWN) 240 VOLT COIL (NOT SHOWN) FITTING,1/4″JIC TO 1/8″NPT 45 BOLT, 5/16″-18 X 3.5″ CLAMP, 1″ LOOP

17 2
QTY 1 3 2 1 1 1 1 1 2 1 1 4 3 1 1 2 3 3 2 1 1 1 1 1 1 1 1

MODEL ALL
1574210, 13 1574211, 12 1574210, 11, 12
1574213 ALL ALL ALL ALL ALL ALL
1574210, 13 1574211, 12 1574210, 11 1574212, 13
1574213 1574210, 11, 12
ALL ALL 1574210, 11 1574212, 13 1574210, 11 ALL 1574212, 13 ALL 1574211, 12 1574210, 11, 12

41

Parts Explosion: Motor, Water Pump & Fuel System

FUEL SYSTEM

10

7

12 11
17 15 13.1

9

8

13

16 14

FOR ALL MODEL

PUMP EXPLODED VIEW

2

3

1

18

4

6

FOR 1574210

PUMP EXPLODED VIEW

PUMP EXPLODED VIEW

18

5
3 19

3 2

4 1 21

20

2

6

6 18

5

4

1

FOR 1574211 & 12

20
FOR 1574213

Fig.1574210_18

42

ITEM
1
2
3
4 5 6 7 8 9 10 11 12 13 13.1 14 15 16 17 18 19 20 21

Parts List: Motor, Water Pump & Fuel System

PART#
802301 803226 802303 802780 A1574210
82141
A1574211 CA30516
A1574212 CA30516
A1574213 82141
803134 30484 800783 35918 777836 802097 803068 799879 798264 802412 82621 82630 82017 777834 801490 800526 305206 796282 795027 799864 777340 798262 797199 777165 305266 803099 305267

DESCRIPTION
MOTOR, 1.5HP WEG, OPEN DIP PROOF MOTOR, 2.0HP 120V, 1PH, 3540 MOTOR, 5.0HP 230V, 1PH, 3450 MOTOR, 6.2HP, 230V, 1PH 1750 PUMP, GP EVO 1.5@ 1700 KEY 3/16 x 3/16 x 1.5″ (NOT SHOWN) PUMP-CAT 4DX 1.5@2000 KEY AND BOLT MOUNT KIT (NOT SHOWN) PUMP-CAT 4DNX 2.5@3000 KEY AND BOLT MOUNT KIT (NOT SHOWN) PUMP-GP EP1812 4@2000 KEY 3/16 x 3/16 x 1.5″ (NOT SHOWN) FITTING, 3/8″ NPT-M TO 3/4″ FGH – PW BYPASS,3/8 X 1/4, HEX BRASS(PW) FILTER, WASHER, 1/2″ NPT X 3/4″ FGH PROTECTOR, THERMAL,1/4 NPT-PW PROTECTOR, THERMAL SWITCH, FLOW 12GPM W/ PILOT SWITCH, FLOW 12GPM W/ PILOT HOSE, 3/8 x 43″ 4000PSI HOSE, 3/8 x 31″ PLATE, TANK STRAP BOLT, 5/16 X .75 HHFB 5/16 FLANGE NYLOC NUT BOLT,5/16-18 X 1 1/2 HHSF GR5Z CLAMP, 1/4″ HOSE HOSE, 1/4″ FUEL LINE (CARB 2020) TANK, ASSEMBLY W/WITH FUEL CAP FUEL CAP FITTING, 1/4″ HB X 1/4″ FPT FITTING, 1/4″ NPT BULKHEAD FILTER, FUEL/WATER SEPARATOR BARB, HOSE BR 1/4 MPT X 1/4(PW) 3/8 FPT X 3/8 FPT ELBOW FITTING, 3/8″ MPTXSFPT ELBOW HOSE,1/4″ BRAIDED CHEMICAL STRAIN RELIEF, 1/2″NPT (PW) STRAIN RELIEF, 1″ NPT, 10GA NUT, STRAIN RELIEF 1/2″ NPT(PW)

QTY
1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 6 3.33 ft 1 1 1
1 1 1 1 1
1 1 1 1

MODEL 1574210 1574211 1574212 1574213
1574210
1574211
1574212
1574213
1574210 1574211, 12
1574213 1574210, 11, 12
1574213 1574211 1574212, 13 1574210, 11, 12 1574213
ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL 1574210 1574211, 12, 13 1574211, 12 1574212 1574213 1574212

43

Parts Explosion: Accessories: – Gun, Hose, Chemical Injector

13

12

11

14

10

3 1

15

17

5

4

ITEM
1 2
2.1
3 4
4.1
5 6 7 8 9 10
11
12
13 14 15 16
16.1 17 18

7

16

8

6

9

Fig.1574210_19

PART#

DESCRIPTION

779165

GUN WITH LANCE

777420 791274

SPRAY GUN, ST-2605 – PW 1/4 QUICK COUPLER

796379 O-RING (NOT SHOWN)

791278

LANCE,18.5″ W/VITON COUPLER

777421

LANCE

780455

3/8″ QUICK COUPLE SOCKET X 3/8″ MPT

GP2701020 O-RING (NOT SHOWN)

777422 777915 799880

SOCKET, 3/8″ MNPT SS QC – PW NIPPLE, 3/8″ HOSE, 3/8″ X 50′ HIGH PRESSURE

777165

CHEMICAL HOSE

779761

HOSE HOOK

221222

STRAINER, CHEMICAL

800615

GFCI CORD HOOK

802890 800110 800425 801091 803035

NOZZLE 4 PACK, #2.0 NOZZLE 4 PACK, #3.0 NOZZLE 4 PACK, #5.5 NOZZLE, 15° ORANGE

2.0 NOZZLE, 15° ORANGE #4.0

777495

M8-1.25 NYLOCK NUT

82621

BOLT, 5/16-18 x .75″ HEX HEAD

82630

NUT, 5/16-18 HEX FLANGE NYLOC

777914

COUPLING, 3/8″

GP2701020 O-RING (NOT SHOWN)

779613

INJECTOR, QUICK CONNECT 3GPM-PW

796634

FITTING, 3/8″ GUN SWIVEL EACH

2 2
3
1 ONLY FOR 1574213
18 4

QTY
1 1 1 1 1 1 1 1 1 1 1 4 FT. 1 1 1 1 1 1 1 1 4 6 6 1 1 1 1

MODEL 1574210, 11, 12
1574213
ALL
1574210, 11, 12 1574213
1574210, 11, 12
1574213 ALL ALL ALL ALL ALL ALL
1574210, 11 1574212 1574213
1574210, 11, 12 1574213 ALL ALL ALL ALL ALL 1574213 1574213

44

Pump Exploded-GP PUMP

Ref#

P/N

DESCRIPTION

QTY

Ref# P/N

DESCRIPTION

QTY

1 Not Available Crankcase

1

25 GP90360000

O-ring, Ø 21.95×1.78

3

2 Not Available Crankshaft (EM12048EUITS)

1

26 GP90258950

Seal Ring, Ø 12.0×18.5×4.5

3

3 GP 99179000 Screw, M6x06

1

27 GP90507080

Anti-extrusion Ring

3

4 GP91822100 Ball Bearing

1

28 GP90258900

Seal Ring, Ø 2.0×21.0x4.2

3

5 GP91846000 Roller Bushing

1

29 GP83100051

Head Ring, Ø 12

3

6 GP90166000 Radial Ring, Ø35.0×47.0x6.0

1

30 GP90359500

O-ring, Ø 17.17×1.78

6

7 GP83030022 Connecting Rod

3

31 GP90367400

O-ring, Ø 12.00×2.00

6

8 GP97730500 Pin, Ø8.0×17.0

3

32 GP36211366

Inlet Valve Seat

6

9 GP83040101 Plunger Assy., Ø12

3

33 GP36211276

Spherical Inlet Valve

3

10 GP90158000 Radial Ring, Ø6.0×22.0x4.0

3

34 GP94732600

Spring, Inlet, 6.0×12.0

3

11 GP83210747 Gasket, Crankcase

1

35 GP36211951

Valve Guide, Inlet

3

12 GP53210851 Oil Level Sight Glass

1

36 GP94733300

Spring, Outlet, 6.7×10.8

3

13 GP90385900 O-ring, Ø25.07×2.62

1

37 GP36211151

Outlet Valve Guide

3

14 GP90067100 Stop Ring

1

38 GP83210851

Ring

3

15 GP98204900 Oil Dipstick

1

39 GP36722401

Inlet Valve Assembly

3

16 GP98204150 Screw, G 1/4″x9

1

40 GP36719301

Outlet Valve Assembly

3

17 GP701013

O-ring, Ø 10.82×1.78

1

41 GP83210113

Valve Cover, G1/8 opt.

1

18 GP99192600 Screw, M6x35

8

42 GP98196800

Plug, G1/8 opt.

1

19 Not Available Manifold, Ø12

1

43 GP10098422

Flange, Electric, 56C

1

20 GP83210013 Valve Cover

2

44 GP99188400

Screw M6x20

4

21 GP99199000 Screw, M6x60

4

45 GP96710400

Washer Ø 10.5×16.0x1.0

4

22 GP99185400 Screw, M6x16

10

46 GP99334500

Screw, 3/8″-16×1″

4

23 GP83210370 Seal Ring, Ø 12

3

47 GP90060500

Anti-extrusion Ring

1

24 GP83210270 Gasket Support, Ø 12

3

45

Pump Exploded-GP PUMP

Ref#

P/N

DESCRIPTION

QTY

Ref# P/N

DESCRIPTION

QTY

2 GP90358700 O-ring Ø 1.11×1.78

2

32 GP98196800

Plug, G 1/8″x8

1

3 GP90358100 O-ring Ø 8.73×1.78

1

33 GP36355951

Box

1

8 GP90357600 O-ring, Ø 6.75×1.78

2

34 GP99159400

Screw, M5x25 7984

1

9 GP36357100 Valve Seat

1

35 GP36355451

Box Cover

1

13 GP94739650 Spring, Ø 11.1×39.5

1

36 GP90360800

O-ring, Ø 28.30×1.78

1

14 GP36356970 Pressure Regulator

1

37 GP99034400

O-ring, Ø 2.2×9.5 7049

4

15 GP36357051 Sliding Washer

2

38 GP92974100

M14x1.5

1

16 GP97480200 Ball, 9/32″

1

39 GP10745901

Wiring Switch

1

17 GP36356551 Valve Guide

1

40 GP90381400

O-ring, Ø 5.23×2.62

1

18 GP36356870 Nipple, Ø 1.8 G1/4″-M

1

41 GP36355551

Cover

1

19 GP36357770 Injector

1

42 GP99072900

Screw, 3×14 9707

1

20 GP94733250 Spring, 6.2×8.0

1

43 GP36356351

Command Jaw

1

21 GP90365000 O-ring, Ø 8.00×1.00

1

44 GP36356251

Clamping Jaw

1

22 GP97478200 Ball, 7/32″

1

45 GP99072930

Screw, M3x14

2

23 GP94730770 Spring, 4.2×13.5

1

46 GP92193000

Nut, Ø M3x2.4

2

24 GP90357300 O-ring, Ø 5.28×1.78

1

47 GP36358847

Bellows

1

25 GP36357670 Maximum Pressure Ring

1

48 GP36357465

Regulating Screw

1

26 GP99070000 Screw, M3x03

1

49 GP36356651

Semi-disc

2

27 GP97613800 Cylindrical Pin, 4.0m6x20.0

1

50 GP97613500

Cylindrical Pin, 3.0m6x12.0

2

28 GP36356770 Nipple, Ø 6.0 G1/4″-M

1

51 GP97613700

Cylindrical Pin, 3.0m6x28.0

1

29 GP36356151 Adjustment Knob 1 30

1

52 GP92192400

Nut, M4x3.2 5588

1

30 GP90383700 O-ring, Ø 15.54×2.62

1

53 GP36607701

Shutter Guide

1

31 GP96710000 Washer, Ø 10.0×14.0x1.5

1

54 GP36607601

Valve Group

1

46

REPAIR KITS:

Pump Exploded-GP PUMP

KIT NO.
KIT DESCRIPTION ITEM NO’S INCLUDED IN KIT NUMBER OF PIECES

GPK309 INLET/OUTLET VALVE
ASSEMBLY 39, 40
1

GPK400 GASKET, CRANKCASE
10 1

GPK401 PLUNGER SEAL 25, 26, 27, 28, 29
1

GPK402 PLUNGER SEAL WITH
GASKET SUPPORT 23, 24, 25, 26, 27, 28, 29
1

47

Pump Explosion-CAT 4DX
48

Pump Explosion-CAT 4DX

Ref#

P/N

DESCRIPTION

QTY

5

Not Available Screw

3

8 CA547153

Bearing Cover

1

10 CA14041

O-Ring, Bearing Cover

1

11 CA55337

Oil Seal

1

15 CA14488

Inner Ball Bearing

1

20 CA547048

Connecting Rod

3

24

Not Available Oil Plug Cap

1

25

Not Available Crankshaft

1

27 CA15710

Ball Bearing

1

32 CA547961

Cap

1

33 CA14179

O-ring for Oil Filter Cap

1

37 CA92241

Gauge, Bubble Oil w/Gasket

1

38 CA44428

Gasket, Flat Flex Oil Gauge

1

48 CA44842

Drain Plug

1

49 CA14179

O-Ring for Drain Plug

1

53

Not Available Crankcase

1

64 CA46229

Crosshead Pin

3

65 CA132190

Plunger Rod

3

70 CA47215

Oil Seal

3

90 CA542403

Plunger

3

98 CA46730

Washer

3

99 CA542405

Retainer, Plunger

3

100 CA46233

Retainer, Seal

3

106 CA48222

Seal

3

120 CA547357

Seal Case

3

121 CA13976

O-Ring for Seal Case

3

125 CA46240

Seal

3

160 CA13965

O-Ring, Inlet

3

161 CA545177

Seat, Inlet

3

163 CA19285

O-Ring

3

164 CA545178

Seat, Discharge

3

166 CA46764

Valve

6

167 CA46865

Spring

6

168 CA543988

Retainer, Spring, Inlet

3

169 CA49764

Retainer, Spring, Discharge

3

172 CA142807

O-Ring for Plug

3

174 CA547104

Plug, Valve w/O-ring

3

185 Not Available Head, Manifold w/Unloader Body

1

188 Not Available Screw

6

Ref# 197 255 401 402 404 408 410 412 414 415 418 423 424 425 426 428 429 435 436 437 438 439 443 444 446 460 469
470
471
472 476 477 478 479 480 483 Kit #1
Kit #2

P/N CA941516 CA30516 CA32088 CA46570 CA45070 CA33394 CA549352 CA46251 CA28338 CA22056 Not Available CA46249 CA13966 CA46248 CA46250 CA26133 CA17399 CA548193 CA46253 CA13963 CA46254 CA13963 CA541060 CA45924 CA26133 CA107681 CA7231
CA76031
CA76146
CA46630 Not Available Not Available Not Available Not Available Not Available CA76176 CA33053
CA76978
CA76754

DESCRIPTION

QTY

Inlet Fitting Assembly

1

Bolt Mount Assembly

1

Handle Adjustable (Not Shown)

1

Adjusting Cap

1

Lock Nut

1

Pressure Spring

1

Spring Retainer

1

Piston Stem

1

Back Up Ring

1

O-Ring, Piston Stem

1

Piston Assy (Included in # 470)

1

Retainer Valve

1

O-Ring, Valve Retainer (Outer)

1

Piston Retainer

1

Washer

1

O-Ring

1

O-Ring, Valve Retainer

1

Valve

1

Seat

1

O-Ring, Seat

1

Seat, Check Valve

1

O-Ring, Check Valve Seat

1

Valve, Check

1

Spring

1

O-Ring

1

Discharge Fitting

1

Chemical Fixed Injector

1

Unloader Repair Kit Includes: 418, 428, 436, 437

1

Check Valve Kit Includes: 438, 439, 443, 444, 446

1

Barb

1

Barb O-Ring

1

Ball

1

Spring

1

Orifice

1

Body

1

Repair Kit

1

Seal Kit Includes: 98, 106, 121, 125

1

Valve Kit Includes: 160, 161, 162, 163, 164, 166, 167, 168, 169, 172

1

O-ring Kit Includes: 414, 415, 424, 428, 1

429, 437

49

Pump Explosion-CAT 4DNX

Ref#

P/N

DESCRIPTION

QTY

5 CA549360

Screw

3

8 CA547153

Bearing Cover

1

10 CA14041

O-Ring, Bearing Cover

1

11 CA55337

Oil Seal

1

15 CA14488

Inner Ball Bearing

1

20 CA547048

Connecting Rod

3

24 Not Available Oil Plug Cap

1

25 CA49883

Crankshaft

1

27 CA15710

Ball Bearing

1

32 CA547961

Cap

1

33 CA14179

O-Ring For Oil Filter Cap

1

37 CA92241

Gauge, Bubble Oil W/Gasket

1

38 CA44428

Gasket, Flat Flex Oil Gauge

1

48 CA44842

Drain Plug

1

49 CA14179

O-Ring For Drain Plug

1

53 Not Available Crankcase

1

64 CA46229

Crosshead Pin

3

65 CA542402

Plunger Rod

3

70 CA47215

Oil Seal

3

90 CA547091

Plunger

3

98 CA46730

Washer

3

99 CA542405

Retainer, Plunger

3

Ref# 100 106 120 121 125 160 161 162 163 164 166 167 168 169 172 174 185 188 249 255 300
310

P/N CA46233 CA49816 Not Available CA13976 CA49824 CA17428 CA547077 CA48361 CA43358 CA547076 CA547098 CA46865 CA543988 CA49764 CA142807 CA547104 Not Available CA549357 CA30520 CA30516 CA76975
CA76976

DESCRIPTION

QTY

Retainer, Seal

3

Seal

3

Seal Case

3

O-Ring For Seal Case

3

Seal

3

O-Ring, Inlet

3

Seat, Inlet

3

Back-Up Ring

3

O-Ring

3

Seat, Discharge

3

Valve

6

Spring

6

Retainer, Spring, Inlet

3

Retainer, Spring, Discharge

3

O-Ring For Plug

3

Plug, Valve W/O-Ring

3

Head, Manifold W/Unloader Body

1

Screw

6

Adapter Mount Assembly

1

Bolt Mount Assembly

1

Seal Kit Includes: 98, 106, 121, 125

1

Valve Kit Includes: 160, 161, 162, 163, 164, 166, 167, 168, 169, 172

1

50

Pump Explosion-CAT 4DNX

Ref#

P/N

DESCRIPTION

QTY

402 CA547798 Adjusting Cap

1

403 CA45070 Lock Nut

1

408 CA32094 Pressure Spring

1

410 CA549352 Spring Retainer

1

412 CA45694 Piston Stem

1

414 CA20184 Back Up Ring

1

415 CA14190 O-Ring, Piston Stem

1

423 CA46249 Retainer Valve

1

424 CA13966 O-Ring, Valve Retainer (Outer) 1

425 CA547799 Piston Retainer

1

426 CA46250 Washer

1

428 CA26133 O-Ring, Valve Retainer

1

429 CA17399 O-Ring, Piston Retainer (Inner) 1

435 CA547800 Valve

1

436 CA49664 Seat

1

437 CA13963 O-Ring, Seat

1

Ref#

P/N

DESCRIPTION

QTY

438 CA46254

Seat, Check Valve

1

439 CA13963

O-Ring, Check Valve Seat

1

443 CA49765

Valve, Check

1

444 CA45924

Spring

1

446 CA26133

O-Ring, Body

1

468 CA31767

O-Ring Kit Includes: 414, 415, 424, 428, 429, 437, 439, 446

1

469 CA7332

Chemical Fixed Injector

1

470 CA76179

Unloader Repair Kit Includes: 412, 414, 415, 423, 424, 425, 426, 428, 429, 435, 436, 437

1

471 CA76146

Check Valve Kit Includes: 438, 439, 443, 444, 446

1

472 Not Available Barb

1

476 Not Available O-Ring, Barb -70d

1

477 Not Available Ball

1

478 Not Available Spring

1

479 Not Available Orifice

1

480 Not Available Body

1

483 CA76176

Kit, Repair (Includes: 476, 477, 478)

1

51

The parts explosion shows these parts on the left-side of the pump housing. However, your pump spec comes with these parts on the right-side of pump housing.

Pump Exploded View ­ GP EP1812 PUMP
52

See manifold and unloader on next page

The parts explosion shows these parts on the right-side of the pump housing. However, your pump spec comes with these parts on the left-side of pump housing.

Pump Parts List ­ GP EP1812 PUMP

Ref# P/N

DESCRIPTION

QTY

Ref# P/N

DESCRIPTION

QTY

2 GP36202551 Valve Cage

3

34 GP96698000 Washer, Ø 7.5x15x0.5

3

3 GP94737600 Spring, Ø 9.4×14.8

3

35 GP58210582 Gasket, Ø 3×94

1

4 GP36711501 Valve

3

36 Not Available Crankcase

1

5 GP36200366 Valve Seat

3

37 GP58210451 Drip Cover

1

6 GP701115

O-Ring, Ø17.13v2.62

3

38 GP90156550 Oil Seal, Ø 15x24x5.7

3

7 GP36711501 Valve Assembly

3

39 GP58050066 Piston Guide

3

8 GP701002

O-Ring, Ø20.24×2.62

3

40 GP97734000 Piston Pin, Ø 10×29.5

3

9 GP98222600 Valve Cap, M24x1.5×16.7

3

41 GP58030022 Connecting Rod

3

10 GP99169000 Plunger Bolt, M5x55

3

44 GP44211801 Sight Glass

1

11 GP96690500 Washer, Ø 5×11.5×0.4

3

47 GP90409700 O-Ring, Ø 55.56×3.53

1

12 GP58040209 Plunger, Ø 18×42

3

50 GP98210500 Oil Dipstick

1

13 GP701014

O-Ring, Ø 12.42×1.78

3

51 GP90392550 O-Ring, Ø 113.97×2.62

1

14 GP36211366 Outlet Valve Seat

3

52 GP58160022 Rear Cover

1

15 GP36211276 Outlet Valve Poppet

3

53 GP98204100 Plug, 1/4″X9

1

16 GP94733300 Spring, Ø 6.2×10.4

3

54 GP701013

O-Ring, Ø 10.82×1.78

1

17 GP36211151 Outlet Valve Cage Guide

3

59 GP90063500 Circlip

1

18 GP36719301 Complete Outlet Valve

3

60 Not Available Crankshaft, 12 Mm

1

19 GP701016

O-Ring, Ø 15.6×1.78

3

61 GP99179000 Set Screw, M6x6

1

20 GP98213700 Outlet Valve Cap, M18x1.5×10

3

62 GP91856800 Needle Bearing

1

21 GP99317500 Screw, M8x60

8

63 GP90409700 O-Ring, Ø 55.56×3.56

1

22 Not Available Head Ring, Ø 18

3

64 GP10050422 Electric Flange

1

23 Not Available Packing, Ø 18, Hp

3

65 GP90168700 Oil Seal

1

24 Not Available Anti-Ext. Ring, Ø 18

3

66 GP203510

Washer, Ø 6.4x10x0.7

4

25 GP58605801 Intermed. Ring, Ø 18

3

67 GP99460000 Screw, Hex, 1/2″X1-1/4″

4

26 Not Available O-Ring, 26.7×1.78

3

68 GP96719500 Washer, Ø 13x18x1.1

4

28 Not Available Seal, Ø 18 Lp

3

69 GP99191200 Screw, M6x30

4

29 GP58210870 Support Ring, Ø 18

3

REPAIR KITS:

KIT NO. ITEM NO’S INCLUDED IN KIT NUMBER OF ASSY’S IN KIT NO. OF CYLINDERS KIT SERVICES

GPK269
7 (2, 3, 4, 5, 6), 18 (13, 14,15, 16, 17)
6
3

GPK270 8, 9, 19, 20
6 3

GPK271 38 3 3

Ø 18

GPK274

Not Available

22, 23, 24, 26, 28

22, 23, 24, 25, 26, 28, 29

3

1

3

1

53

Pump Parts List ­ GP EP1812 PUMP

The manifold/unloader parts explosion shows a right-side manifold configuration. However, your pump spec is a left-side manifold configuration. The parts are the same except for ref # 21 which is not being offered separately.

Ref# P/N 1 GP36350651 2 GP10084666 3 Not Available 4 Not Available 5 Not Available 6 Not Available 13 Not Available 14 Not Available 16 GP90358700 17 GP90358100 18 Not Available 19 GP90357800

DESCRIPTION Adjustment knob Fork for adjustment knob O-ring, Ø18.72×2.62 Pressure adjusting nut Washer Spring, Ø11.3×34.5 Screw, M4X5 Pressure ring O-ring, Ø11.11×1.78 O-ring, Ø8.73×1.78 Anti-extrusion ring O-ring, Ø7.66×1.78

QTY

Ref# P/N

DESCRIPTION

QTY

1

20 Not Available Seat

1

1

21 Not Available Manifold, left side unloader

1

1

23 GP90382300 O-ring, Ø9.92×2.62

1

1

24 GP97483800 Ball, Ø13/32″

1

2

25 GP94735500 Spring, Ø8.2×12

1

1

26 GP36310451 Valve guide

1

1

27 GP90383900 O-ring, Ø15.88×2.62

1

1

28 GP36348770 Nipple, 3/8″ NPT-M

1

1

29 GP98204100 Plug, 1/4″x9 (U)

1

1

30 GP90358500 O-ring, Ø10.82×1.78 (U)

1

1

47 GP36605401 Valve Assembly

1

1

55 GP98196600 Plug, 1/8″x8

1

54

Wiring Diagram – 1574210

PUMP MOTOR

16

TSS SWITCH

EVO-TSS WIRE

16

BRN

1
T4 T8
T2 T3 7P2 T5
T1

2
WIRE NUT
WIRE NUT

WHT BLK

BLU
2 POSITION LEVER LOCK

GRN

3

POWER SWITCH

7

BLK

WHT

4

BLK

BLK

BLK

CONTROL BOX

BURNER SWITCH

8
BLK

2 POSITION LEVER LOCK
7 BLK

BLK

RED WIRE NUT

WHT

16

WIRE NUT

BLK
WHT BLK

WHT
14

BLK WHT
GRN
5

CONTACTOR WHT
6
Fig.1574210_20

YL/GRN

CONTROL BOARD

3 POSITION LEVER LOCK
BL

WHT

3 POSITION LEVER LOCK

9

BRN

12 11

10

YL/GRN
13

IGNITER PLUG

FLAME SENSOR

BURNER FUEL SOLENOID

WHT
WHT BLK
BLK BRN BLU BLK BLK

17
15
PLUG
PLUG High Temp. Limit Switch
BURNER MOTOR

FLOW SWITCH
HI PRESSURE LIMIT

Balloon #

Description

1

NUT, WIRE RED – AC 459242

2

CORD, MOTOR, 14/3 – HW

3

HARNESS, THERMOSTAT – 4 PIN – PW

4

WIRE, LEAD BLACK – PW

5

CORD, GFCI,120V/20A, WITH DECAL

6

WIRE LEAD, WHITE, PW

7

HARNESS, WIRE FLOW SWITCH TO BOARD HWPG

8

WIRE LEAD, BLACK, PW

9

WIRE HARNESS, POWER SUPPLY IGNITER ­ PW

9.1 RING TERMINAL (NOT SHOWN)

10

WIRE HARNESS, FUEL SOLENOID – PW

11

WIRE HARNESS, IGNITOR TO FUEL SOLENOID, WHT

12

WIRE HARNESS, IGNITOR TO FUEL SOLENOID, BLK

13

CORD, FLAME SENSOR ­ HW

13.1 HOUSING, PLASTIC MOLEX 39-01-2020 (NOT SHOWN)

14

CORD, MOTOR, 250WATT 120VAC

15

WIRE HARNESS, TEMP/HI-PSI LIMIT – PW

16

NUT, WIRE

17

SWITCH, FLOW 12.0GPM 5000PSI-PW

Part Number

Qty

35408

2

802993

1

803321

1

803322

1

803215

1

778139

2

800599

2

778138

1

803096

1

33390

1

803095

1

802990

1

802989

1

803105

1

801133

1

792255

1

802991

1

5265

3

797121

1

55

Wiring Diagram – 1574211

PUMP MOTOR

TSS SWITCH

1 10

T4
T2 T8 7P2
T5 T3

2
WIRE NUT

T1

WIRE NUT

GRN

3

BLK
5

4
WHT GRN
7

WHT
POWER SWITCH
BLK

WHT BLK
BLK BLK

TSS-WIRE

11

CONTROL BOX

RED

WIRE NUT

10

THERMOSTAT BOARD

WHT
8

1
2
3
4
1 2 3 4 5 6 7 8

7 6 5 4 3 2 1

BURNER SWITCH

WHT

BLK

BLK

9

CONTACTOR WHT

GRN

WHT

3 POSITION LEVER LOCK
BL

WHT

WHT BLK
BRN BL

10 19

WHT
2 POSITION LEVER LOCK
BLK
BLK BLK

11 8
WHT

WHT BLK
WIRE NUT

RED WHT

BLK BLK

BLK

2 POSITION LEVER LOCK
WHT

BLK
17

16

BLK

CONTROL BOARD

3 POSITION LEVER LOCK

YLW/GRN

BLK BLK

18
PLUG
PLUG

9

12

BRN

15

13

BLK 14

6

FLOW SWITCH
HI PRESSURE LIMIT
THERMISTOR

Fig.1574211_20

IGNITOR

BURNER FUEL SOLENOID

FLAME SENSOR

BURNER MOTOR

Balloon #

Description

1

NUT, WIRE RED – AC 459242

2

CORD, MOTOR, 14/3 – HW

3

HARNESS, THERMOSTAT – 4 PIN – PW

4

WIRE, LEAD BLACK – PW

5

CORD, GFCI,120V/20A, WITH DECAL

6

CORD, FLAME SENSOR ­ HW

6.1 HOUSING, PLASTIC MOLEX 39-01-2020 (NOT SHOWN)

7

WIRE LEAD, WHITE, PW

8

HARNESS, WIRE FLOW SWITCH TO BOARD HWPG

9

WIRE HARNESS, THERM POWER, 120VAC – PW

10

NUT, WIRE

11

WIRE HARNESS, 4 PIN THERM BOARD – HW

12

WIRE HARNESS, POWER SUPPLY IGNITER ­ PW

12.1 RING TERMINAL (NOT SHOWN)

13

WIRE HARNESS, FUEL SOLENOID – PW

14

WIRE HARNESS, IGNITOR TO FUEL SOLENOID, WHT

15

WIRE HARNESS, IGNITOR TO FUEL SOLENOID, BLK

16

WIRE HARNESS, 8 PIN THERM BOARD – PW

17

CORD, MOTOR, 250WATT 120VAC

18

WIRE HARNESS, TEMP/HI-PSI LIMIT – PW

19

SWITCH, FLOW 12.0GPM 5000PSI-PW

56

Part Number

Qty

35408

2

802993

1

803321

1

803322

1

803215

1

803105

1

801133

1

778139

1

800599

2

802987

1

5265

3

803100

1

803096

1

33390

1

803095

1

802990

1

802989

1

802999

1

792255

1

802992

1

797121

1

Wiring Diagram ­ 1574212 & 13

TSS SWITCH

PUMP MOTOR
4

1

6

T4 T1 T5 7P2

WIRE NUT

T8

GRN
2

WHT
POWER SWITCH

WHT

TSS-WIRE
CONTROL BOX
10 RED WIRE NUT BLK

15
THERMOSTAT BOARD
1 2 3 4

BLK

8

BURNER SWITCH

BLK

3
BLK WHT

BLK CONTACTOR

BLK
7

8

10

WHT

2 POSITION LEVER LOCK

WHT

BLK

1

2 3

BLK

4

5

6

7 8

BLK

7 6 5 4 3 2 1

WHT

BLK BLK

BLK
16
WHT

RED
WIRE NUT WHT

BLK

2 POSITION LEVER LOCK

WHT BLK

BLK
18

CONTROL BOARD

WHT WHT
BLK

WHT BLK
BRN BL

GRN
5

WHT YLW/GRN

3 POSITION LEVER LOCK
BLU

WHT

3 POSITION LEVER LOCK

YLW/GRN

7

BRN

14 9

11

12

BLK 13

19
FLOW SWITCH

17
PLUG

HI PRESSURE LIMIT

PLUG THERMISTOR

BLK

Fig.1574212_20

IGNITER

BURNER FUEL SOLENOID

FLAME SENSOR

BURNER MOTOR

Balloon #

Description

1

NUT, WIRE RED – AC 459242

2

HARNESS, THERMOSTAT – 4 PIN – PW

3

WIRE, LEAD BLACK – PW

4

CORD, GFCI,240V,10AWG,WITH DECAL

5

WIRE LEAD, WHITE, PW

6

CORD, MOTOR, 10/3 – HW

7

WIRE HARNESS, THERM POWER, 240VAC – PW

8

HARNESS, WIRE FLOW SWITCH TO BOARD HWPG

9

CORD, FLAME SENSOR ­ HW

9.1 HOUSING, PLASTIC MOLEX 39-01-2020 (NOT SHOWN)

10

NUT, WIRE

11

WIRE HARNESS, POWER SUPPLY IGNITER ­ PW

11.1 RING TERMINAL (NOT SHOWN)

12

WIRE HARNESS, FUEL SOLENOID – PW

13

WIRE HARNESS, IGNITOR TO FUEL SOLENOID, WHT

14

WIRE HARNESS, IGNITOR TO FUEL SOLENOID, BLK

15

WIRE HARNESS, 4 PIN THERM BOARD – HW

16

WIRE HARNESS, 8 PIN THERM BOARD – PW

17

WIRE HARNESS, TEMP/HI-PSI LIMIT – PW

18

MOTOR, 250WATT 240 VAC

19

SWITCH, FLOW 12.0GPM 5000PSI-PW

57

Part Number

Qty

35408

2

803321

1

803322

1

803216

1

778139

1

802994

1

802988

1

800599

2

803105

1

801133

1

5265

2

803096

1

33390

1

803095

1

802990

1

802989

1

803100

1

802999

1

802992

1

792256

1

797121

1

Summary of Important Safety Information
This section provides a summary of the various safety procedures and measures that have been presented throughout the manual. Keep this summary handy and refer to it to refresh your memory about how to safely use your pressure washer.

WARNING

Carefully read and understand the following safety information before using the pressure washer. Improper use or maintenance of the pressure washer can result in serious injury or death to the operator or bystanders from:

· Carbon monoxide poisoning · Fire/explosion · Chemical exposure

· Skin/eye injury from high pressure spray

· Burns · Electric shock

· Slips/falls · Flying objects/debris

GENERAL
· Read all instructions. Read and understand this Owner’s Manual and the Motor Owner’s Manual completely before attempting to set-up and use the pressure washer. Serious injury or death can result if safety and other instructions are not followed.
· Instruct all operators. The pressure washer’s owner must instruct all operators and potential renters in safe pressure washer set-up and operation. Do not allow anyone to operate the pressure washer who has not read the Owner’s Manual and been instructed on its safe use. Owner’s Manuals are available from NorthStar at 1-800-270-0810.
· Adult control only. Only trained adults should set up and operate the pressure washer. Do not let children operate. Pressure washers can generate forces greater than children can control and require judgment beyond what can be expected of children.
· Under the influence. Never operate, or let anyone else operate, the pressure washer while fatigued or under the influence of alcohol, drugs, or medication.
· Understand intended use. Carefully read about and understand the intended use of this pressure washer. Do not use for other purposes, as unforeseen hazards or equipment damage may result.

PROHIBITION AGAINST MODIFICATIONS Never modify or alter the pressure washer in any way or deactivate any safety device. Modifications can create serious safety hazards and will also void the warranty.
· Fuel/exhaust system. Never add to or modify the exhaust system, fuel tank, or fuel lines. Carbon monoxide poisoning, fuel leaks, fire or explosion could result.
· Unloader valve. Do not attempt to alter the unloader valve’s maximum pressure. Excess pressure could cause serious injury from escaping high- pressure fluids and/or pump damage. Any alteration other than turning the adjustment knob will void your warranty.
· Guards. Do not operate pressure washer unless all guards and cover shields are in place.
SAFETY ­ INSTALLATION & SET-UP
Installation / Initial Set-up · Level, heat-resistant surface. Situate pressure washer on a firm, level, and heat-resistant surface with good drainage. Ensure it
sits level and will not slide or shift during operation. Block wheels to prevent movement. · Prevent carbon monoxide poisoning ­ Use outside only! Exhaust fumes from both the Motor and the burner contain carbon
monoxide (CO), a poisonous gas you cannot see, smell, or taste. The CO generated by the pressure washer can rapidly accumulate, even in areas that appear to be well ventilated, resulting in dangerous and fatal concentrations within minutes. To prevent dangerous CO build-up: · ONLY use pressure washer outdoors and at least 20 feet from the home, away from windows, vents, and air intakes, to allow proper ventilation. If you start to feel sick, dizzy, or weak while using the pressure washer, shut off the Motor and get to fresh air RIGHT AWAY. · NEVER run pressure washer in an enclosed or partially enclosed location such as a building, garage, shed, or vehicle. Running a fan or opening windows will not provide adequate ventilation to prevent dangerous CO build-up.
58

Summary of Important Safety Information
· Adequate ventilation. The pressure washer needs adequate, unobstructed flow of air to allow for proper combustion and cooling. Situate so there is adequate clearance around pressure washer to allow for airflow ­ at least 7′ from any non-combustible wall or obstruction. Never place any objects against or on top of pressure washer.
· CO alarms. Ensure that working, battery-operated or battery back-up carbon monoxide alarms are used in any dwelling/structure that is in close proximity to the running pressure washer.
· Hot exhaust – fires. Exhausts from burner can be extremely hot and cause fire. Position pressure washer so burner exhaust is at least 7′ away from combustible objects during operation.
Fuel Safety Burner fuels are combustible at warm temperatures. You can be burned or seriously injured when handling fuel. Use extreme care when handling fuel, including these preventative measures: · Fuel outdoors. Fill fuel tank outdoors ­ never indoors. Fuel vapors can ignite if they collect inside an enclosure. Explosion can
result. · Use approved container. Never pump fuel directly into fuel tank at gas station. Static charge can build and ignite fuel. Use an
UL approved fuel container to transfer fuel. · Running / hot Burner. A hot burner is hot enough to ignite fuel. Never add fuel or remove fuel cap if burner is running or still hot.
Allow Burner to cool at least two minutes before adding fuel. · Heat / flames / sparks. Stay away from sources of heat, flame, or sparks while adding fuel. · Don’t overfill. DO NOT overfill the fuel tank. Allow at least 1/2″ of empty space below the fill neck to allow for fuel expansion. · Replace cap. Replace fuel cap securely before starting. · Spills. Clean up fuel spills immediately. Move pressure washer away from spilled fuel on the ground. Wait 5 minutes for excess
fuel to evaporate before starting Motor. Fuel soaked rags should be disposed of properly. · On skin / clothes. If fuel is spilled on your skin or clothes, change clothes and wash skin immediately. · Inspect fuel system. Check fuel tanks and fuel system on a regular basis. Look for signs of leaks, deterioration, chafed or spongy
fuel hose, loose or missing fuel hose clamps or damaged fuel tank. Do not start pressure washer until needed repairs have been completed. · Fuel storage. Store fuel in a cool, dry place in an UL-approved, tightly sealed container.
SAFETY ­ OPERATION
Pre-start · Review safety rules. Before each use of this pressure washer, review the “Rules for Safe Operation.” Failure to follow these rules
may result in serious injury or death. · Know how to stop. Be thoroughly familiar with proper use of the equipment and all controls and connections. Know how to stop
the pressure washer and relieve system pressure quickly if needed. · Danger: High-pressure fluid injection hazard. High-pressure fluid spray or discharge from leaks (even pin-sized) or ruptured
components can pierce the skin and inject fluid into the body. Injection injury can result in blood poisoning and/or severe tissue damage leading to infection, gangrene and possibly amputation. · Check/maintain machine before each use. Check hoses & fittings for damage and leaks before use. Ensure all components are properly connected. Follow all maintenance instructions specified in pressure washer and Motor manuals.
– Never operate machine with damaged or missing hoses/parts. Never attempt to repair a high-pressure hose or component. Always replace it with a part that is rated at or above the pressure rating of this machine.
– Never run the machine without sufficient lubrication or sufficient water to cool the pump. – Never operate unless all safety guards are in place.
59

Summary of Important Safety Information
· Position safely. Place sprayer on firm, level ground to prevent accidental falls and equipment tip-over. · Not in presence of combustibles. Do not use the pressure washer in the presence of flammable vapors, dust, gases, or other
potentially combustible materials. Operate only where open flame or torch is permitted · Use backflow preventer. The use of a back-flow preventer on the water supply hose is recommended and may be required by
local code. · Clear work area. Clear work area of all bystanders. Keep children and pets away. · Wear protective gear. High-pressure spray can cause eye/skin injury, hot water can burn, and flying objects/debris can cause
injury. Serious injection injury can result if high-pressure spray penetrates the skin. Operators should wear waterproof, thermally insulated gloves, safety glasses with side and top protection, face protection, and protective clothing when operating the machine. If spraying pressure washer specific cleaning chemicals, wear a respirator or mask to avoid inhalation of vapors if directed on the chemical label. · Wear non-slip footwear. Use of pressure washer can create puddles and slippery surfaces. Wear footwear capable of maintaining a good grip on wet surfaces. · Check nozzle. The nozzle can become a projectile and cause serious personal injury or property damage if not properly connected to the spray gun. Check to ensure the nozzle has been properly attached to the spray gun before using the pressure washer.
During use · Safety latch locked before starting Motor. Always engage the safety latch on the spray gun trigger before starting the Motor. · Incoming water supply on. Do not run the pump without the water supply connected and turned on. Operating the pressure
washer without an incoming flow of water will damage the pump. · Wait before re-lighting burner. NEVER attempt to immediately run or re-light the burner if it doesn’t ignite the first time. Unburned
fuel may have accumulated, causing potential explosion or fire hazard. · Use two hands. Pressure washer spray gun kicks back when triggered. Firmly grasp with two hands. · Stay alert. Watch what you are always doing. · Prevent slips / loss of balance. High-pressure spray could cause you to lose balance from kickback forces, and wet surfaces can
be slippery. · Always keep good footing and balance. · Do not overreach. · Do not stand on unstable support when spraying. · Use extreme caution when spraying from a ladder or scaffolding, ensure it is firmly anchored from sway or tip-over. Use extreme caution to avoid falling as spray gun kick can propel you off the ladder or scaffolding. · Be aware of puddles and slippery surfaces. Ensure there is adequate drainage to prevent pooling of water.
· Keep spray away from people. Never direct discharge stream at or near any person. Do not allow any part of the body to come in contact with the fluid stream. High-pressure spray will cause serious skin, eye, or falling injuries, and hot water can burn. Injection injury will occur if high-pressure spray pierces the skin, injecting liquid under the skin. Injection injury can result in blood poisoning and/or severe tissue damage leading to infection, gangrene and possibly amputation.
· Prevent surface damage & flying debris ­ Surfaces being sprayed must be strong enough to withstand high-pressure spray, or damage may result. In addition, high-pressure spray will dislodge unsecured objects as well as surface chips and debris, resulting in hazardous flying objects that can cause personal injury or property damage. Do not spray brittle surfaces or breakable, fragile, or unsecured objects such as: o stucco or laminar flagstone o some painted surfaces o windows or glass doors (because they may break) o light fixtures, flowerbeds, mailboxes o unsecured, lightweight objects
· Do not lock spray gun trigger in ON position. To reduce risk of injury, do not attempt to secure the spray gun open by blocking or tying the spray gun in the open position.
60

Summary of Important Safety Information
· Keep spray away from electrical wiring. Spray contact with electrical wiring will likely result in severe electrical shock or electrocution.
· Use only approved cleaning chemicals. Only chemicals specifically designed for use in pressure washers may be used. Never spray acids, corrosives, or abrasive or flammable liquids. Breathing hazards, surface burns/corrosion, or fire/explosion could result.
· Follow cleaning chemical manufacturer’s instructions. Follow the chemical manufacturer’s label instructions when handling or spraying chemicals. Understand all safety hazards and first aid for all chemicals being used. Wear protective gear as directed. Always wear protective gloves when handling and cleaning with chemicals. When cleaning filters, check whether dangerous chemicals have been used with the filter and take any precautions that may have been recommended by the supplier of these chemicals. Always dispose of hazardous fluids per local, state, and national guidelines.
· Do not exceed pressure and or temperature limits. Do NOT operate this pump with components (such as hose, connections, and spray gun) rated for lower pressure and or temperature limits than the machine’s maximum rated pressure and temperature, or component could rupture and cause serious personal injury from escaping high pressure fluids. Do not set the pressure relief device above the rated pressure. If the high-pressure relief device ever discharges water, turn the Motor off and do not use the machine. Call Product Support at 1-800-270-0810.
· Never pull by hose. Do not move this machine by pulling on the hose. Hose or connections could fail and result in catastrophic high-pressure release of fluid as well as hose whipping.
· Avoid sharp objects. Keep hose away from sharp objects. Bursting hoses may cause injury. · No load bearing. Do not use the pump to support other items of equipment that impose unacceptable loads on the pump. Do not
attempt to use this machine as a prop. · Hot exhaust/parts. Stay clear of Motor and burner exhausts. Never touch hot Motor muffler, burner/heating coil, or other hot
surfaces. All are very hot and will burn you. · Hot spray gun metal when using burner. Never touch the metal screw or any metal parts of the spray gun when the heater is
being used ­ the metal gets very hot and will burn you. · Smoking/sparks. Never smoke near the running Motor, and never operate near sources of sparks or flames as flammable fuel
vapors are in the vicinity of the pressure washer. · Lock trigger safety latch when not spraying. Spray gun is equipped with a built-in trigger safety latch to guard against
accidental trigger release. Rotate safety latch to the locked position when not spraying. · Relieve water pressure. Always stop the product and relieve system pressure before leaving the sprayer unattended, or when
disconnecting hoses, removing nozzles, or servicing the pump. · Refueling. Never add fuel to the burner unless unit is off and has cooled. · Do not direct spray at this machine. Do not attempt to clean this machine with its own spray. Motor damage will result. Cleaning
should be done with a damp sponge with the Motor OFF. · Seek medical aid for suspected carbon monoxide poisoning. The running Motor gives off carbon monoxide, a poisonous gas
that can kill you. If you start to feel sick, dizzy, or weak while using the pressure washer, shut off the Motor and get to fresh air RIGHT AWAY. See a doctor. You may have carbon monoxide poisoning. · Seek medical aid for suspected injection injury. If injured by high-pressure fluid, no matter how small the wound is, see a doctor at once. A typical injection injury may be a small puncture wound that does not look serious. However, severe infection or reaction can result if proper medical treatment is not administered immediately by a doctor who is familiar with injection injuries. · Other exhaust dangers. This product contains or emits chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Avoid inhalation of exhaust.
After use · Cool Burner before storing. Let Motor cool for at least five minutes before storing. A hot Motor is a fire hazard. · Prevent accidental starting. When pressure washer is not in use, move spark plug or spark plug wire in order to ensure that
pressure washer cannot be started in a storage location or by untrained persons. · Storage location. Store the pressure washer in a dry location away from sources of heat, open flames, sparks or pilot lights ­
such as water heaters, space heaters, furnaces, clothes dryers, or other gas appliances ­ EVEN IF the pressure washer’s Fuel tank is empty, residual vapors or fuel could ignite.
61

Summary of Important Safety Information
SAFETY – INSPECTION/MAINTENANCE Inspect and maintain your pressure washer on a regular basis and repair as needed to keep it in safe working condition: · Turn off / relieve pressure first. Turn off pressure washer and relieve system pressure before inspection or maintenance before
working on the Motor or pressure washer to prevent accidental starting. · Follow maintenance schedule. Follow all maintenance instructions in this pressure washer manual. · Replace guards / shields. Make sure all guards and shields are replaced after servicing the pressure washer. · Replacement parts. If a part needs replacement, only use factory approved repair parts. Replacement parts that do not meet
specifications may result in a safety hazard or poor operation of the pressure washer and will void the warranty.
62

Limited Warranty

Dear Valued Customer:

The NorthStar Product you just purchased is built with the finest material and craftsmanship. Use this product properly and enjoy the benefits from its high performance. By purchasing a NorthStar product, you show a desire for quality and durability. Like all mechanical equipment this unit requires a due amount of care. Treat this unit like the high quality piece of machinery it is. Neglect and improper handling may impair its performance. Please thoroughly read the instructions and understand the operation before using your product. Always contact NorthStar Product Support at 1-800-270-0810 prior to having any service or warranty work performed, as some services performed by parties other than NorthStar approved service centers may void this warranty. This warranty is in lieu of any other warranty expressed or implied and NorthStar assumes no other responsibility or liability outside that expressed within this warranty.
Limited Warranty

NorthStar shall warranty any piece of equipment manufactured, or parts of equipment manufactured, to be free from defects in material or workmanship for a period of:

NorthStar Warranty

Item #

Consumer Warranty Period

1574210, 1574211, 1574212, 1574213

2 years from date of purchase by user

Commercial Warranty Period 2 years from date of purchase by user

“Consumer use” means personal residential household use by a consumer. “Commercial use” means all other uses, including use for commercial, income producing or rental purposes or when purchased by a business.
This warranty applies to the original purchaser of the equipment (verification of purchase, in the form of a receipt, is the responsibility of the buyer), is non-transferable, and covers parts and labor. Parts will be replaced or repaired at no charge, except when the equipment has failed due to lack of proper mai

References

• P65Warnings.ca.gov
• p65warnings.ca.gov/

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