NORTHSTAR M1571493H Pressure Washer Owner’s Manual

NORTHSTAR M1571493H Pressure Washer

Specifications

• Item Number: 1571493
• Pressure Washer Type: Cold Water, Belt Drive
• Power Source: Gasoline Internal Combustion Engine
• Water Flow Rate: Minimum of 6 gallons per minute

Product Information

About Your Pressure Washer

Thank you for purchasing a NorthStar Pressure Washer! It is designed for long life, dependability, and top performance.

Intended Use

The pressure washer is designed to produce a high-pressure water spray and can incorporate cleaning chemicals into a low-pressure water spray. Do not use the pressure washer for purposes other than those specified to avoid hazards or equipment damage.

Water Supply

The pump requires a clean, standard tap water supply provided through a garden hose at a flow rate of at least 6 gallons per minute. It is recommended to use a backflow preventer on the water supply hose, which may be required by local codes. Ensure that any cleaning chemicals used are approved for pressure washer use.

Power Source

The pressure washer is powered by a gasoline engine, making it suitable for outdoor use only. Refer to the manual’s Initial Set-up section for guidance on site selection when running the pressure washer.

Supplies Required

Normal operation will require you to supply gasoline, water through a garden hose, and any approved cleaning chemicals for use in pressure washers.

Product Usage Instructions

Installation/Set-up

1. Choose a suitable outdoor location for operating the pressure washer.
2. Connect the garden hose to the water supply and ensure a flow rate of at least 6 gallons per minute.
3. Add gasoline to the engine as per the manufacturer’s instructions.
4. Follow the specific guidelines in the manual for starting up the pressure washer.

Operation

1. Start the gasoline engine according to the manufacturer’s instructions.
2. Adjust the pressure settings as needed for the cleaning task.
3. If using cleaning chemicals, ensure they are approved for pressure washer use and follow proper dilution instructions.
4. Aim the spray lance at the surface to be cleaned and begin washing.

Maintenance & Storage

1. Regularly check and clean the filters, nozzles, and hoses to maintain optimal performance.
2. Store the pressure washer in a dry, well-ventilated area away from direct sunlight when not in use.
3. Follow the maintenance schedule outlined in the manual to ensure longevity and reliable operation.

FAQs

• Q: Can I use any cleaning chemicals with this pressure washer?
  • A: Only cleaning chemicals specifically approved for use in pressure washers should be used to avoid damage to the equipment.
• Q: What should I do if I encounter issues with my pressure washer?
  • A: For any questions, comments, problems, or parts orders, contact NorthStar Product Support at 1-800-270-0810 for assistance.

“`

M1571493H
ITEM NUMBER: 1571493
SERIAL NUMBER: _____
Owner’s Manual Cold Water, Belt Drive Pressure Washer
Instructions for Installation/Set-up, Operation, Maintenance, & Storage
This pressure washer produces cold water high pressure spray. Cleaning chemicals may be incorporated into the spray if desired. The pressure pump for this equipment is powered by a gasoline internal combustion engine.
WARNING: SPECIAL HAZARDS
· CO Poisoning: Exhaust from engine contains carbon monoxide, a poisonous gas that can cause carbon monoxide poisoning and possible death if inhaled. ONLY run 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 engine and get to fresh air RIGHT AWAY.
· Injection Injury: High-pressure spray can pierce skin and underlying tissues, leading to serious injury and possible amputation. Such an injection injury can result in blood poisoning and/or severe tissue damage.
· Flying Debris: High-pressure spray can cause flying debris and possible surface damage. · Slips/Falls: Spray discharge can cause puddles and slippery surfaces. Spray-gun kickback can cause operator loss of
balance and falls. · Electric Shock: Operating equipment in wet conditions or near water can cause electric shock. · Chemical Exposure: Cleaning chemical vapors or contact with skin may be hazardous. · Fire/Explosion: Engine sparking can ignite fuel or other flammable liquids or vapors in the vicinity. Hot exhaust from engine
can ignite combustible materials. · Burns: Pressure Washer pump and engine are hot surfaces that can cause burn injuries.
Detailed safety information about these hazards appears throughout this manual.
Equipment Protection Quick Facts
Inspect Upon Delivery: FIRST! Inspect for missing or damaged components. See Initial Set-Up section for where to report missing or damaged parts. Add Engine Oil: Engine is shipped without oil. See engine manual for instructions on capacity and viscosity recommendations. Replace Temporary Pump Oil Plug: Pump is shipped with oil but with a temporary shipping plug. Check pump oil level before starting and replace temporary shipping plug with permanent oil fill plug provided within plastic bag containing this Owner’s Manual. Battery Required: A battery is not included. A battery must be installed before starting the engine or damage to the engine voltage regulator will result. Purchase a standard 12 VDC, 18 Ah lawn and garden battery (Group U1-7). Water Flow Requirements: Make sure your supply water flow rate is 20% higher than the pressure washer’s flow rate (see “Specifications” section for detail), and that your water is clean and particle free. Chemical Spraying: Use only approved pressure washer chemicals designed for high-pressure use. Use chemical adjustment knob to regulate cleaning power (on select units). Storage: Do not allow water to freeze in the pump, hose, or spray gun(s). See “Storage” for more information. Maintenance Schedule: Engine, pump, and belts require periodic inspection and servicing to keep pressure washer functioning efficiently. See “Maintenance Schedule Summary” for frequency of servicing.
Any Questions, Comments, Problems, or Parts Orders Call NorthStar Product Support 1-800-270-0810

About Your Pressure Washer

Thank you for purchasing a NorthStar Pressure Washer! It is designed for long life, dependability, and top performance.
Intended Use. Produce a high-pressure water spray. Incorporate cleaning chemicals into a low-pressure water spray.
Note: Do not use for other purposes, as unforeseen hazards or equipment damage may result.
Gasoline powered pressure washers are for OUTDOOR USE ONLY. Be sure to read about site selection for running this pressure washer in the “Initial Set-up” section of this manual.
Water Supply. The pump requires a clean, standard tap water supply provided through a garden hose at a flow rate of at least 6 gallons per minute. The use of a backflow preventer on the water supply hose is recommended and may be required by local code. Any cleaning chemicals that are used must be specifically approved for use in pressure washers.
Power Source. The pressure washer is powered by a gasoline engine.
Supplies Required. Normal operation will require you to supply:
· Pressure Washer pump oil · Gasoline · Engine oil · 12-Volt standard lawn and garden battery · Personal Protection Equipment
See “Specifications” section of this manual for more detail.

Site Location. Intended for outdoor use only.
Personal Protection. Wear safety apparel during operation, including safety glasses with side and top protection. Ear protection is also recommended if working near any operating engine. Other safety apparel includes waterproof insulated gloves, safety glasses with side and top protection, and non-slip protective footwear. Cleaning chemicals may require the use of respiration mask; refer to chemical label for further instruction.
Adult control only. Only trained adults should set up and operate the pressure washer. Do not let children operate.
Under The Influence. Never operate, or let anyone else operate, the pressure washer while fatigued or under the influence of alcohol, drugs, or medication.
WARNING: Read this Manual
Carefully read and follow all instructions and safety information for using this pressure washer. Improper use or maintenance of the pressure washer can result in serious injury or death to the operator or bystanders.
ATTENTION: Rental Companies and Private Owners who loan this equipment to others!
All persons to whom you rent/loan this pressure washer to 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

Specifications

1571493

FLOW OUTPUT

PSI (bar)

5000 (345)

GPM (l/min)

5 (18.9)

Max Water Temp

140° F (60°C)

ENGINE

Engine

Honda GX690

Displacement (cc)

688 cc

DIMENSIONS/COMPONENTS

Length

33.75″

Width

34″

Height

32.25″

Pump Model

Comet TWS 5050S

Pump Oil Capacity

35.84 oz.

SUPPLIES REQUIRED (not included)

Engine Oil

Refer to engine manual

Pump Oil (Shipped with Oil, but SAE 30 Non-Detergent Oil or Comet

refills required)

Pump Oil (Part# 22022)

Battery

12 Volt, 18 amp (Group U1-7)

5

Component Identification

8 11

14

10 9

1 3 42 5 6
FIG06851
1. Engine Oil Fill. Use included funnel to add engine oil to unit.
2. Oil Dipstick. Check engine oil level. 3. Carbon Canister. Prevents gasoline vapors from
exiting the fuel system. 4. Belt Guard. Guards against accidental contact
with moving parts. 5. Pump Oil Sight Glass. Fill pump oil to middle of
the sight glass. 6. Pump Oil Fill. Add pump oil here. Replace
shipping plug with vented dipstick. 7. Battery Tray. Storage location for battery. (Battery
Not included, customer to purchase separately) 8. Nozzles. Change nozzles for different spray
patterns. 9. Water Outlet. Connect high pressure hose here.

7 FIG06852 12 13
10. Fuel Shut-off Valve. Turn fuel shut-off valve to OFF position before transporting or servicing the pressure washer.
11. Gas Tank and cap. Fuel storage container and cap.
12. Muffler. An acoustic device installed onto the exhaust system that is designed to reduce noise.
13. Engine. The air-cooled engine powers the pump. 14. Lifting Points. Lift the machine from these points
when transporting. Unit is intended to be lifted with hoist/hooks by roll cage.

See Parts Explosion for more details

6

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.

7

Safety Decal Locations

Safety Labeling

WARNING:
ALWAYS make sure safety labels are in place and in good condition. If a safety label is missing or not legible, order new labels from NorthStar Product Support at 1-800-270-0810.

4 1

5

2

3

ON-PRODUCT WARNING LABELS

REF #

PART #

DESCRIPTION

QTY.

1

801055

Operating Instructions with Warnings

1

2

786632

Rotating Machinery

1

3

782397

Battery Hazard

1

4

786837

Fire/Overheating/Overfill

1

5

788936

Burn Hazard

1

8

Safety Decals 2

Safety Labeling
1

3

WARNING – BATTERY HAZARDS

BATTERIES:

1. contain caustic acid, 2) emit explosive gases,

2. can cause electric shock

ALWAYS use eye protection. Caustic acid and explosive gases can cause blindness or severe burns. NO smoking, sparks, or flames. NEVER touch both battery terminals at the same time with your hand or any non-insulated tools. FLUSH immediately with water if battery acid contacts eyes, skin, or clothing. CONNECT cables in correct sequence: FIRST RED to POSITIVE terminal, then BLACK to NEGATIVE terminal. When disconnecting, DISCONNECT BLACK cable first, then RED. NEVER charge a visibly damaged or frozen battery. ALWAYS read and follow charger instructions.
782397

4

5
To order replacement safety labels, call NorthStar Product Support at 1-800-270-0810.
9

Initial Set-Up

Step 1. Inspect & Unpack
Upon receipt for missing or damaged parts. Verify that it is the pressure washer you ordered. See “Component Identification” section of this manual for a diagram of the pressure washer and its components.
· For missing or damaged components, contact Product Support at 1-800-270-0810. · If complete, fill out product serial number information. See “Limited Warranty” section of this manual.
Components:

FIG06854

PRESSURE WASHER

SPRAY GUN LANCE

WHEELS

HANDLES

HARDWARE BAG

SPIN ON COUPLER

10

Hardware Bag:

Initial Set-Up

1/4″ X 7″ BOLT Part #82377 (QTY 2)
3/8″ X 2-1/2″ BOLT Part #82106 (QTY 2)
5/16″ X 1″ BOLT Part #82016 (QTY 2)

5/16″ FLANGE NUT Part #82019
(QTY 2)

3/8″ NYLOC NUT Part #82027
(QTY 2)

1/4″ WINGNUT Part #82083
(QTY 2)

3/8″ COTTERLESS PIN Part #38070
(QTY 2)

5/16″ FLAT WASHER Part #82021
(QTY 10)

1/4″ X 3/4″ SELF TAPPER Part #82232
(QTY 2)

LARGE BUMPER Part #15431 (QTY 2)

WHEEL RETAINER Part #305200 (QTY 2)

BUMPER Part #2215
(QTY 2)

GROMMET Part #35198
(QTY 5)

SPARK ARRESTER Part #781341 (QTY 1)

FUNNEL Part #785290
(QTY 1)

GRIP Part #30747
(QTY 2)

COUPLER Part #791308
(QTY 1)

VENTED DIPSTICK CO3200005100 (QTY 1)

6″ LANYARD Part #786756
(QTY 2)

BATTERY TIE PLATE Part #787620 (QTY 1)

NOZZLE Part #803866
(QTY 1)
11

CHEMICAL INJECTOR HOSE Part #777165 (QTY 3ft)
CHEMICAL STRAINER Part #221222 (QTY 1)

Initial Set-up

Step 2. Assembly
Note: Remove all contents from pallet and assembly can occur at this time.
1. Install wheel onto axle using a 5/32″ allen wrench. Repeat on other side.

3. Install grip onto handle. 4. Attach small bumper to handle with ¼” x ¾” self-
tapper. 5. Insert (1) 3/8″ x 2-1/2″ bolt through (1) flat
washer and through one end of lanyard as shown below. Attach 3/8″ cotterless pin to other end of lanyard. 6. Install handle to pressure washer using 3/8″ x 2-1/2″ bolt, (4) flat washers and (1) 3/8″ nyloc nut until washers press against tube walls.
Repeat for both sides.
7. Insert cotterless pin through bottom hole of arm so handle doesn’t fold up while in use.

2. Install nozzles into Grommets, install Grommets onto frame and install rubber feet.

INSERT GROMMETS INTO FRAME AND INSERT NOZZELS INTO GROMMETS

FIG06858

INSTALL RUBBER FEET WITH 5/16″ X 1″ BOLTS + 5/16″ NUTS

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. · 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.

12

Initial Set-up

Prepare Water Pump

1. Verify pump oil level.

Note: The pump is shipped with oil.

a. Remove shipping plug and install vented

dipstick.

b. Verify that oil level is half way up the

sight glass (or at the indicator line on the

dip stick).

2. If oil level is low, fill using the type of pump oil

specified below. See the “Specifications” section

of this manual to determine the type of pump that

came equipped with this pressure washer.

Pump

Oil Type

NorthStar

· SAE 30 Non-

Detergent Oil or

Comet Pump Oil

(Part# 22022)

3. Replace oil fill cap.

OIL FILL CAP

Prepare Engine
1. Fill engine with oil. Note: Engine is shipped without oil. You must add oil before first use. a. Refer to engine’s manual to locate oil-fill port and for instructions on filling. Use the oil grade and quantity specified in the Engine Manual.
WARNING: Burn Hazard
Never open oil port while engine is running. Hot oil can spray over face and body.
Battery Installation
1. Install a 12-volt standard lawn and garden battery (Group U1-7) with a minimum of 18 amp hour rating. The engine will NOT run unless a battery is installed.
· The battery is to be supplied by the customer and should be installed in the protective battery tray located near the engine.

SIGHT GLASS OIL DRAIN PLUG

FIG06859

2. Following the steps below for connecting and disconnecting the battery:
WARNING: Battery Hazards Batteries are hazardous because they contain caustic acid, can emit explosive gases, and can cause electric shock. Caution must be exercised when making connections to a battery to avoid shock and contact with the acid, and to prevent any sparking that could lead to an explosion. ALWAYS follow the general battery safety rules and instructions.

General Battery Safety Rules · ALWAYS use eye protection and protective clothing when handling batteries. · NEVER smoke or work near sparks or other sources of ignition. · NEVER touch both battery terminals at the same time with your hand or any non-insulated tools.

If battery acid contacts skin or clothing, flush immediately with water and neutralize with baking soda.

13

Initial Set-up

Connecting the Battery Always connect the cables in the following sequence to avoid possible shock:
a. Find the battery cables located near the battery tray.
b. Connect the red cable to the positive (+) terminal of the battery.
c. Then connect the black cable to the negative (-) terminal of the battery.
d. Reinstall the battery strap before using the pressure washer.
Disconnecting the Battery Always disconnect cables in the following sequence to avoid possible shock.
a. First, disconnect the black cable from the negative (-) terminal of the battery.
b. Next, disconnect the red cable from the positive (+) terminal of the battery.
c. Remove the battery from the battery compartment.
d. Reinstall the battery strap.
Step 3. Select Suitable Location
Moving and Handling
Moving your pressure washer around · Use the handles to manually move the pressure washer. · Pull the pressure washer behind you has you walk. · To turn, lift slightly on the handles and pivot the pressure washer on the back wheels.
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.
WARNING: Location hazards
Choose a suitable site for operating your pressure washer to prevent possible death from carbon monoxide poisoning or injury from fire/explosion, hot surfaces or equipment tip-over.

Elevating or lowering your pressure washer · To reduce risk of injury, it is recommended that two adults lift the pressure washer. · Only lift the pressure washer by handles. Do not use the pump or engine as a lifting point.
Outdoor Use Only
Select a suitable outdoor location: · Away from all building windows and air intakes. · Away from vapors, dusts, and gases. · Where there is adequate, unobstructed ventilation airflow. · Away from dusty/dirty conditions. · With adequate clearance from combustible materials. · On a firm, level, heat- resistant surface with good drainage. 1. Never run the pressure washer in an enclosed or partially enclosed location such as a building, garage, barn, shed, or house. These spaces can trap poisonous gases. Running a fan or opening windows will not provide adequate ventilation to prevent dangerous CO build-up. 2. Only use the 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 engine and get to fresh air RIGHT AWAY. 3. Place the pressure 4. Washer so that the exhaust fumes will not be directed towards people or building air intakes. 5. Do not locate and use the pressure washer in the presence of flammable vapors, dust, gases, or other potentially combustible materials. 6. 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. 7. Note that this pressure washer is NOT designed or approved for use in vehicles or marine applications. Never run the pressure washer inside RVs or other vehicles, on boats, or on pickup truck beds.

14

Initial Set-up

Positioning: 1. The pressure washer should be positioned on a firm, level (less than 3 degree slope), heatresistant surface with good drainage and a nearby water supply. 2. The pressure washer should be placed within garden hose distance of a continuous 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. 3. Situate so there is adequate pulling room for starting the engine using the recoil starter. Attempting to pull at an odd angle could rip off grip cord and/or cause muscular injuries to the operator.
Airflow: 1. Situate so there is adequate clearance around pressure washer to allow for airflow ­ at least 7 feet from any non-combustible wall or obstruction. 2. Do not operate with a tarp, blanket, or cover surrounding the machine. 3. Do not place any objects against or on top of the unit. 4. The pressure washer needs adequate, unobstructed flow of air to allow for proper combustion and adequate cooling. Proper combustion can only be obtained when there is a sufficient supply of oxygen available for the amount of fuel being burned. Cooling ventilation is required to prevent overheating of the pressure washer and possible fire. Exhaust:
WARNING: Exhaust Modification hazard
Never attempt to attach ductwork to the muffler system to allow for installation inside an enclosure. This could cause heat build-up and increased exhaust back-pressure, resulting in possible exhaust leakage or damage to the pressure washer.
1. The exhaust gas from your pressure washer is extremely hot and can cause combustible materials to catch on fire.
2. Make sure the engine is at least 7 feet from all combustible materials and structures during operation.
3. Keep a fire extinguisher rated “ABC” nearby. Keep it properly charged and be familiar with its use.

4. Place the unit so that the exhaust fumes will not be directed towards people or building air intakes.
DANGER: Carbon monoxide hazard
Exhaust fumes from the engine contain carbon monoxide (CO), a poisonous gas you cannot see, smell, or taste. The CO generated by the engine can rapidly accumulate, even in areas that appear to be well ventilated, resulting in dangerous and fatal concentrations within minutes. 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 engine and get to fresh air RIGHT AWAY. See a doctor. You may have carbon monoxide poisoning.
Install Spark Arrester (if Required)
Equip engine with spark Arrester if machine will be used near any ignitable forest, brush, or grassy land. (See engine owner’s manual provided to determine if the engine is already equipped.) Make sure you comply with applicable local, state, and federal codes.

15

Operation

Follow Safety Rules for Operation
After you have checked and fueled the equipment and positioned it in a suitable worksite, it is time to start your pressure washer. The following are the procedures necessary for safe, successful operation of your pressure washer.
WARNING
Failure to follow safety rules may result in serious injury or death to the operator or bystanders.
Instruct operators. Owner must instruct all operators in safe 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. Safety equipment/controls. Always operate with all safety covers, guards, and barriers in place and in good working order, and all controls properly adjusted for safe operation. Moving parts. Keep hands, feet, hair and apparel away from moving parts. Air vents may cover moving parts and should be avoided as well. Never remove any guards while the unit is operating.
Ear protection. Hearing can be damaged from prolonged, close-range exposure to the type of noise produced by this pressure washer. The use of ear plugs or other hearing protection device is recommended for persons working within 15-20 feet of the running pressure washer for an extended period of time. Eye protection. Wear ANSI/OSHA required “Z87.1” safety glasses when operating or servicing the pressure washer. Pressurized spray from this unit can cause severe injury to the eyes. Small objects can become airborne as the spray contacts them.
Before starting the pressure washer, review the following general safety rules for operation.
Conditions for Use 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 depressurize system quickly if needed (see “Step 4. Stopping”). Instruct all operators. The pressure washer’s owner must instruct all operators and potential renters in safe 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.

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. Safety equipment/controls in place. Do not operate the pressure washer unless all safety covers, guards, and barriers are in place and in good working order, and all controls are properly adjusted for safe operation. Damaged. Do not operate the pressure washer with damaged, missing, or broken 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 the machine. Modifications. Do not modify the pressure washer in any way or deactivate any safety device. Do not change or add to fuel tank, fuel lines, or exhaust system. Modifications can result in hazards related to carbon monoxide poisoning, fuel leaks, fire, explosion or other serious safety hazards, and will also void the warranty.
During Use Stay alert. Watch what you are doing at all times. Clear work area. Clear the work area of all bystanders. Keep children and pets away. Keep spray away from electrical wiring. Spray contact with electrical wiring will likely result in a severe electrical shock or electrocution. Hot exhaust/parts. Stay clear of engine exhaust. Never touch hot engine muffler, or other hot surfaces. All are very hot and will burn you. Do not direct spray at this machine. Do not attempt to clean this machine with its own spray. Engine damage will result. Cleaning should be done with a damp sponge with the engine OFF. Let engine cool at least two minutes before refueling. Avoid inhalation of exhaust. This product emits CO and chemicals known to the State of California to cause cancer, birth defect, or other reproductive harm. 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.

16

Operation

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. 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. Leaving unattended. Always turn off the pressure washer and relieve system pressure before leaving the sprayer unattended.
Prompt Emergency Response
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. Seek medical aid for suspected carbon monoxide poisoning. The running engine 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 engine and get to fresh air RIGHT AWAY. See a doctor. You may have carbon monoxide poisoning.
Put on Personal Protective Gear
WARNING: Personal Protective Gear Use personal protective gear to prevent: – Eye and skin injection injury from high pressure spray – Eye injury from flying debris
1. Wear waterproof gloves, safety glasses with side and top protection, face protection, and protective clothing when operating the machine. If spraying pressure washer specific chemicals, wear a respirator mask to avoid inhalation of vapors if directed on the chemical label.
2. Wear non-slip, protective footwear. Use of pressure washer can create puddles and slippery surfaces. Wear footwear capable of maintaining a good grip on wet surfaces.

Preparing for Operation
Make sure that any regular maintenance has been performed as prescribed in “Maintenance & Repair” section.
Check/Add Oil to Pump
CAUTION
Never run the pump without sufficient lubrication!

1. Check oil level. Verify that oil level is half way up the sight glass (or at the indicator line on the dipstick).
2. If oil level is low, fill using the following guidelines:

Pump Comet
3. Replace fill cap.

Oil Type
· SAE 30 Non-Detergent Oil or Comet Pump Oil (Part# 22022)

Check/Add Engine Oil
Use the recommended oil type for your engine and expected ambient conditions. (See engines’ manual.) Use included funnel to fill engine oil.
WARNING: Burn Hazard
Never open oil port while engine is running. Hot oil can spray over face and body.
Note: Engine is shipped without oil. You must add oil before first use.
Add Fuel
WARNING: Fuel Fire/Explosion Hazard Gasoline is highly flammable and explosive. Heat, sparks, and flames can ignite fuel vapors, which can become widespread during fueling. A flash fire and/or explosion could result and cause serious injury or death. Always use extreme care when handling fuels. Carefully follow all instructions to avoid the following conditions which could result in fuel ignition: · gas vapor collection inside enclosures · static electric sparks · sparks from electric wiring, batteries, or running engines · sources of heat (such as a hot engine exhaust) · open flames, including pilot lights

17

Operation

Always follow these general safety rules when fueling: 1) Turn pressure washer off and allow to cool for at least
two minutes before removing the fuel cap. Note: A running or still-hot engine is hot enough to ignite fuel. 2) Fill fuel tank OUTDOORS ­ never indoors. Fuel vapors can ignite if they collect inside and enclosure and explosion can result. 3) Stay away from all sources of heat, sparks, and flames. Do not smoke. 4) Never pump fuel directly into the gas tank at a gas station ­ it could cause a static electric spark. Follow these steps to avoid static electric sparking during fueling: · Use an approved portable container to transfer
fuel to the pressure washer’s tank. (A portable container made of metal or conductive plastic is preferred because it dissipates charge to ground more readily.) · Always place container on the ground to be filled. Never fill the portable gas container while it is sitting inside a vehicle, trailer, trunk, or pick-up truck bed. · Dissipate static charge from your body before beginning the fueling process by touching a grounded metal object at a safe distance from fuel sources. · Keep nozzle in contact with container while filling. Do not use a nozzle lock-open device. 5) Clean up fuel spills/splashes immediately. · If possible, move the pressure washer away from spilled fuel on the ground. · Wipe up spilled fuel and wait 5 minutes for excess fuel to evaporate before starting engine. · 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.
Fill Engine Fuel Tank
Check the gasoline tank level. If needed, fill tank with fresh unleaded gasoline from a portable container: 1) Remove engine gas cap.
2) Add gasoline through the fill opening:

– Do NOT overfill the gasoline tank. Allow at least 1/2″ of empty space below the fill neck to allow for fuel expansion. 3) Replace gas cap securely before starting engine. 4) Store extra gasoline in a cool, dry place in an ULapproved, tightly sealed container.
Inspect Fuel System/Check for Leaks
Inspect the engine fuel system and check for leaks before starting pressure washer and before each use.
Do not start pressure washer until all needed repairs have been completed.
WARNING: Fuel Leak Hazard Gasoline fuel is highly explosive and fuel leaks can result in fire or explosions. You can be burned and seriously injured if the fuel system is not properly hooked up or there is a fuel leak when you start the engine.
Inspect the entire fuel system. Look for: · signs of leaks or deterioration · chafed or spongy fuel hose · loose connections · loose or missing fuel hose clamps · damaged fuel tank · defective gasoline shut-off valve
Inspect Spray System
Always inspect spray system for damage and leaks before each use. Do not start pressure washer until all needed repairs have been completed.

– Use only a UL-listed portable gasoline container to transfer the gasoline to engine’s tank.

18

Operation

WARNING: High Pressure Fluid Injection Hazard
High-pressure fluid discharge from leaks (even pin-sized) 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.

Model 1571493

Time to fill 5 gallon bucket 50 seconds

3.) 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″.
4.) The water source pressure must not exceed 115 psi (8 bar).
5.) Always use a flexible rubber hose for your water supply. Do not use rigid piping.
PUMP OUTLET
HIGH PRESSURE HOSE

Perform Scheduled Maintenance, as needed
Make sure that any other regular maintenance has been performed as prescribed in this manual in the “Maintenance & Repair” section.

FIG06860
PUMP INLET

1. Refer to the engine owner’s manual for engine maintenance instructions.
2. Make sure battery is charged. Charge as needed according to your battery manufacturer’s instructions.
Connect Hoses, Water Supply, and Spray Nozzle
· For detailed instruction on positioning your pressure washer for use, turn to the “Initial Set-Up” section of this manual and reference “Step 3: Select Suitable Location”.
· Where no flammable vapors, dusts, and gases are present.
· Where there is adequate, unobstructed ventilation airflow.
· With adequate clearance from combustible materials. · On a firm, level, heat-resistant surface with good
drainage and nearby access to a continuous water supply.
Attach Garden Hose to Water Inlet
1.) Make sure the water supply is clean. Debris can cause excess pump wear and reduce performance.
2.) An insufficient water supply will damage your pump. Make sure the water supply is steady and is 20% over the rated flow of your pump. Use a stopwatch to time how long it takes to fill a 5-gallon bucket with your garden hose.

WASHER
GARDEN HOSE
Pressure Washing with a Low Flow Water Supply If the water supply available does not meet the above time-to-fill requirements, the nozzles will have to be downsized to #3.0 nozzles. Failure to downsize the nozzles will result in cavitation and damage to the pump. To order NorthStar #3.0 nozzles, part number 38531, call NorthStar Product Support at 1-800-270-0810.
Attaching Water Feed Tank (if desired) Water may be supplied to the pressure washer either via an external tank or via a standard tap water supply.
CAUTION: Inadequate Water Supply Inadequate plumbing between a feed tank and the pressure washer can cause damage to the pump from cavitation. To avoid cavitation:
· Use ¾” hose and fittings or larger. Hose should be shorter than 6 feet.
· Place feed tank so that bottom of tank is level or higher than the bottom of the pump inlet.
· Place feed tank as close as possible to the pressure washer so the connection hose is as short as possible.
· Make sure the connection hose does not kink. · Never allow tank to run dry.

19

Operation

To connect an external feed tank, follow the steps below:
1. Customer will supply the following:
a. 200 gallon tank or larger water feed tank. b. ¾” connection hose no longer than 6 ft. c. ¾” fittings. Do not use 90° elbow fittings. 2. Make sure that the bottom of the water feed tank
is level or higher than the pump inlet. 3. Connect one end of the ¾” hose to the water
tank. 4. Connect the other end of the ¾” hose to the
pump. Make sure the connection hose will not
kink. 5. Reroute 1/4″ easy start hose if equipped so it
discharges back to the feed tank. This will aid in pump priming upon initial start-up. Remove ¼” hose barb from inlet and replace with 1/4″ NPT plug (to be supplied by customer).

2. Your pressure washer hose is equipped with quick couplers. Simply pull the collar back and push the coupler onto the water outlet nipple. The collar should slide over the ball bearings. First few times connecting might require more force due to O’rings needing to break in
Coupler

Collar

High Pressure Output

3. Release the collar, making sure it springs back and

re-seats to its original (non-retracted) position. Check

the connection by pulling on the hose to ensure a

positive connection.

HOSE TO FEED TANK

Correct Insertion

Not Fully Inserted

FIG06861

1/4″ NPT PLUG

6. Fill the tank to desired level.
CAUTION: Adding Chemicals to Feed Tank Certain chemicals, such as bleach or those containing muriatic acid, will cause pump damage if introduced upstream through the pump’s water inlet and will void warranty.
Attach High Pressure Hose to Water Outlet WARNING: High Pressure
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 could rupture and cause serious personal injury from escaping high pressure fluids.
1. See “Component Identification” section of this manual for location of the pressure washer’s water outlet.

Collar Seated

Collar NOT Seated

Select nozzle for spray gun Your pressure washer is equipped with four highpressure nozzles and one low-pressure nozzle. Generally, the wider the spray angle of the nozzle, the lower the spray impact produced. Select the appropriate nozzle for the job based on the following table:

Color of Nozzle:

Spray

Used For:

Angle

Yellow

15° Tough Stains/Stripping

Green

25°

General

White

40°

Light Cleaning

Black-Low pressure

65°

Chemicals

Note: You must use the low pressure black nozzle for

spraying chemicals.

Spray Gun Safety Lock When not spraying, use the spray gun safety lock to prevent accidental high pressure discharge.

20

spray gun

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

spray gun safety lock

FIG04701
Spray Gun

Lance

Spin-on-Coupler

CORRECT INSERTION
Collar seated

NOT FULLY INSERTED
Collar NOT seated

Attach Quick Connect Couplers -To install the hose onto the pump, pull back the collar and push the hose into the coupler on the pump. -To install the hose onto the spray gun, pull back the collar on the spray gun and push the hose into the coupler on the spray gun.

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 engine is off. Even if the engine has been off for a long period of time, the hose may remain dangerously pressurized.

pump

hose spray gun

1. Make sure the engine is off and the hose line is depressurized.
2. To install the nozzle, pull the collar back and twist the nozzle firmly into the coupler on the end of the wand. First few times connecting might require more force due to O’rings needing to break in.

Prime the Water Supply
Turn on water supply and squeeze the trigger. CAUTION: Water Pressure Never run the pump without the water supply connected and turned on. Operating the pressure washer without a sufficient incoming flow of water will damage the pump.
· Turn on the water supply. Make sure the water supply is steady and flowing at a rate 20% over the rated flow of your pump. (See Step 1 above, Connect Hoses, Water Supply, and Nozzle.)
· Purge air from the water supply hose by squeezing the trigger until a steady stream of water flows out of the nozzle at low pressure. (Air in the hoses can cause damage to the pump, so always make sure all the air is out of the hoses before starting the pressure washer engine.)
· Make sure the water supply hose is not kinked. A kinked hose will provide insufficient water supply to the pump and reduce its life. Make sure the hose remains unkinked after moving the pressure washer.

Nozzle

Coupler

Lance

Collar

21

Operation

Set Up for Chemical Spray (if desired)
Using the proper cleaning chemical for the application can speed up cleaning jobs tremendously.
Your pressure washer is equipped with a chemical injection point on the downstream side of the pump for introducing cleaning chemicals into the water stream. A braided chemical hose is provided to connect at this point. Suction pressure at this connection automatically draws the chemical solution in through the hose, mixing in 1 part chemical to 15 parts water. Adequate suction pressure is created only when the low pressure (black) spray nozzle is used.
The introduction of cleaning chemicals via the chemical injection point affords the following advantages: · It protects the pump from damage because
chemicals will not pass through the pump. · It mixes the cleaning chemical into a low pressure
spray. Cleaning chemicals applied under low pressure adhere better to the surface being cleaned, allowing the formula time to react and remove dirt more effectively.

CAUTION: Non-approved Chemicals Non-approved chemicals can damage pressure washer components (seals, wand, hoses, pump, etc.) and be harmful to the environment and will void warranty. Prepare for Chemical Spray (if using) Prepare the pressure washer for chemical spraying using the following steps:
1. Prepare (dilute) chemical cleaning solution as required for the job.
Note: the chemical solution will be automatically mixed with the water at a ratio of 15 parts water to 1 part chemical solution.
2. Press the braided chemical hose over the chemical injector on the pump.
3. Submerge the suction strainer connected to the braided chemical hose into a bucket containing the chemical solution.

CHEMICAL INJECTOR /ADJUSTMENT KNOB

BRAIDED HOSE

Note: An external upstream chemical injector is not recommended for use with this pressure washer, and if used would obviously alter the 15-to-1 dilution ratio and may cause pump damage.
CAUTION: Chemicals Containing Muriatic Acid Certain chemicals, such as bleach or those containing muriatic acid, will cause pump damage if introduced upstream through the pump’s water inlet and will void warranty.
WARNING: Chemical Spraying · Never spray acids, corrosives, or abrasive or flammable liquids. Breathing hazards, surface burns/corrosion, or fire/explosion could result. · Follow the chemical manufacturer’s label instructions for proper use and handling of the chemical. Understand all safety hazards and first aid for all chemicals being used. Always wear protective gloves when handling and cleaning with chemicals, and wear other protective gear as directed by chemical manufacturer. Always dispose of hazardous fluids per local, state, and national guidelines.
Acquire Cleaning Chemical Use only approved pressure washer chemicals or chemicals specifically formulated for use with pressure washers.

FIG06863
DILUTED CHEMICAL

STRAINER

Note: Adding accessories (IE: telescoping wands, extra length of High pressure hose, Non factory triggers) will affect chemical injector performance or cause it not to operate at all.
Start-Up Procedures Start the engine to power the pump.
1. Make sure water supply is connected and primed. CAUTION: Warranty Void Running the pump dry will cause damage and void the warranty.
2. To prevent accidental spraying, engage the safety latch on spray gun trigger by rotating it to the locked position.
3. Follow the instructions in the engine’s manual for starting the engine.

22

Operation

– If the engine doesn’t start on the first try, pressure may have built up in the pump. Relieve pressure by squeezing the spray gun trigger before attempting to start engine again. This will make starting easier.
DANGER: Engine Exhaust Do not inhale engine exhaust. It contains dangerous carbon monoxide that can kill you.
Apply Cleaning Chemical (If desired)
1. Make sure the chemical injector is properly set up according to the instructions in Step 2, Set Up for Chemical Spraying.
2. Make sure the low pressure BLACK nozzle is attached before beginning to spray chemicals — Only the low pressure black nozzle will allow chemicals to be drawn through the chemical injector into the water stream.
3. Apply chemicals by squeezing the spray gun trigger. The chemical injector will draw the chemical into the water stream.
4. The chemical concentration of the spray can be changed by turning the chemical adjustment knob located on the chemical injector.
5. Apply chemicals evenly to the cleaning surface. Never use more chemical than is necessary to clean the surface.
6. Allow the chemicals time to react with the dirt before rinsing.
7. Prepare to rinse by changing to a high-pressure nozzle. Changing the nozzle from the low-pressure black nozzle to a high-pressure nozzle will stop the flow of chemicals into the water stream.
Note: Refer to instructions for selecting and changing the nozzle in step 1, Connect Hoses, Water Supply, and Nozzle. 8. Rinse with high-pressure spray as instructed below.

Begin High Pressure Spray
WARNING: High Pressure Spraying Safety
· 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 can cause serious skin, eye, or falling injuries. Injection injury will occur if highpressure 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. Seek medical attention.
· Do not secure trigger open. 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.
· 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. – If spraying from an elevated surface, use fall protection because spray gun kickback can propel you off the elevated surface. When spraying from a ladder or scaffolding, ensure it is firmly anchored from sway or tip-over. – Be aware of puddles and slippery surfaces. Ensure there is adequate drainage to prevent pooling of water.
· 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

23

Operation

Procedure: 1. Put on one of the high-pressure spray nozzles
(always relieve system pressure first and follow instructions for attaching a nozzle).
2. Clear the cleaning area of all persons. Keep children and pets away.
3. Hold the spray gun firmly with two hands and a sturdy stance; the gun kicks back when triggered.
4. Wash from the bottom to the top, using side-to-side motions. This washes away heavy dirt and allows the detergent to soak as you work toward the top.
5. Use the width of the spray pattern to wash a wide path. Overlap spray paths for complete coverage.
6. The nozzle should be 12″ to 24″ from the work, closer for tough areas.
7. Small parts should be washed in a basket so the pressure does not push them away. Larger, lightweight parts should be clamped down.
8. The pressure washer is set and locked to the maximum rated pressure when it leaves the factory.
9. To reduce the pressure, turn the unloader knob counter-clockwise.
WARNING: Warranty Void Do not attempt to alter the unloader valve’s maximum pressure. Excess pressure could cause serious injury from escaping highpressure fluids and/or pump damage. Any alteration other than turning the adjustment knob will void your warranty.
UNLOADER

11. Always turn off the engine and activate spray gun trigger to relieve system pressure when: · the sprayer is unattended, or · disconnecting hoses, installing/cleaning nozzles, or servicing the pump.
WARNING: Injury Always turn off the engine and relieve system pressure when finished spraying or when leaving sprayer unattended. Serious injury could result from unintentional release of highpressure spray.
Shutdown
Stop the engine using the following steps:
WARNING: Injury Never disconnect the high-pressure hose from the pump or spray gun while the system is pressurized. Relieve pressure by squeezing the spray gun trigger after the engine is turned OFF.
1. Turn engine OFF. 2. Turn water supply OFF. 3. Actuate spray gun trigger to relieve system pressure. 4. Remove garden hose. 5. Remove pressure hose. 6. Remove nozzle from spray gun. 7. Turn gasoline line valve to the OFF position. 8. If chemicals were used, remove chemical injector tube
from the pump.

FIG06864
10. If temporarily interrupting spraying, rotate trigger safety latch downward to the locked position to guard against accidental trigger release.

Safety Latch

24

Storage

When you are finished using the pressure washer, you must prepare the sprayer for storage and store it in a proper location.
Between-Use Storage
Perform periodic maintenance as directed in this manual to keep the pressure washer in safe working condition.
Choose a storage location that is: · Clean and dry. · Away from sources of heat, open flames, sparks, or pilot lights, even if the pressure washer’s engine fuel tank is empty. Residual fuel fumes from tank can ignite.
Away from extreme high or low temperatures. Do not store the pressure washer in freezing conditions unless it is prepared as directed below for those conditions.
Note: · If you will be storing the sprayer in freezing conditions, follow the instructions for preparing the sprayer for storage in freezing conditions.
· If you will not be using the sprayer again for 30 days or more, follow the instructions for preparing the engine for long-term storage.
WARNING: Flammable Materials · Fuel and its vapors can ignite and
cause a fire. Select a well-ventilated storage area away from sources of heat, flame, or sparks. · A hot engine can ignite flammable materials. Always let engine cool at least five minutes before storing.

WARNING: Freezing Conditions Do not allow water to freeze in the pressure washer, high pressure hose, or spray gun. Freezing water can cause damage to the equipment and 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.
1. Drain the water from the high pressure hose and spray gun by depressing the trigger on the spray gun until all water drains out.
2. Disconnect the plumbing that connects to the pump outlet.
3. Obtain the materials you will need: · 12″ piece of garden hose or equivalent · funnel · approximately 6 oz. of RV antifreeze
4. Attach the 12″ garden hose piece with the funnel to the pump inlet.
5. Pour RV antifreeze into the funnel, then pull the recoil a few times until antifreeze comes out of the pump outlet.
RV Antifreeze

Prepare Pressure Washer for Freezing Conditions
If you will be storing the pressure washer in freezing temperatures, you must properly prepare the pressure washer to prevent water from freezing in the system.

Funnel Hose Water Inlet

25

Storage
Prepare Engine for Long Term Storage
Prepare the engine for long term storage if you will not be using the pressure washer 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 a malfunction of the engine. 1. Prepare fuel system for storage:
· Drain all gasoline from the tank and carburetor. This is most easily accomplished by running the pressure washer with the high pressure hose until the engine stops from lack of fuel. OR
· Add fuel stabilizer to the gasoline (following manufacturer’s instructions.) Fuel stabilizer steps: a. Ensure gas tank is full. b. Add fuel stabilizer to fuel tank. c. Run pressure washer with high pressure hose at least 5 minutes after adding stabilizer to allow it to enter the fuel system. d. Shut off engine.
2. Lubricate cylinder and piston: a. Disconnect spark plug wire and remove spark plug b. Add one teaspoon oil through spark plug hole c. Place rag over spark plug hole and slowly pull the recoil a few times to lubricate the combustion chamber.
Replace spark plug, but do not reconnect the spark plug wire.
Prepare Pressure Washer for Storage
To prepare the pressure washer for storage. 1. Make sure the engine start switch is OFF position. 2. Disconnect the engine spark plug wire, if you
haven’t already done so. 3. Disconnect the high-pressure hose, garden hose,
and spray gun.
Move Pressure Washer to Storage Location Let engine cool for 5 minutes before moving the pressure washer to its storage location.
26

Maintenance & Repair

WARNING: Maintenance Hazards ALWAYS shut off water supply, bleed water pressure, turn off engine, and disconnect the spark plug wire before cleaning, adjusting, or servicing the pressure washer. After servicing, make sure all guards and cover shields are replaced before using.

Maintenance Schedule Summary

Maintenance Task Remove dust/debris accumulation Inspect fuel system Inspect spray system Clean inlet filter Check tire pressure Perform engine maintenance Change pump oil
Drive belt maintenance

Frequency As needed Each use Each use Each use Each use As specified in engine manual · After first 50 hours of use · Every 3 months or 500 hours of use after that · After first 24 hours of running · Routinely with each oil change after that

See detailed instructions for each maintenance item below. (Note: For end-of- the-season storage instructions, see the storage section of this manual.)

See detailed instructions for each maintenance item below.

Detailed Instructions ­ Maintenance & Repair

NOTICE
Dispose of used engine and pump oil in a manner that is compatible with the environment and in accordance with local, state, and federal laws and regulations.
· Place used oil in a sealed container to your local recycling center or service station for reclamation.
· Do not throw used oil in the trash, pour it on the ground, or pour it down a drain.
No modifications. Never modify or alter the pressure washer in any way. Modifications can create serious safety hazards and will also void the warranty.
Follow Safety Rules
Read and follow these safety rules whenever you will be servicing the pressure washer:
· Turn off / relieve pressure first. Always turn off the pressure washer and relieve the system pressure before inspection or maintenance. Remove the spark plug or the spark plug wire to prevent accidental starting.

· Fuel valve off. Turn fuel shut-off valve to the OFF position before transporting or servicing the pressure washer.
· Replace guards. Make sure all guards and cover shields are replaced after servicing the pressure washer.
· Major repair. Major service, including the installation or replacement of parts, should be performed only by a qualified service technician. Obtain factory approved parts from NorthStar Product Support at 1-800-2700810.
· 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.
Keep Pressure Washer Clean
If dust or debris accumulates on the pressure washer, clean the pressure washer with a damp cloth or soft bristle brush. Do not allow air intakes to become blocked.

27

Maintenance & Repair

CAUTION Do not spray pressure washer with a garden hose or pressure washer. Water may enter the pressure washer and cause damage.
Inspect Spray System
Inspect spray system for damage and leaks before each use. Do not start pressure washer until all needed repairs have been completed.
WARNING: High Pressure Fluid Injection Hazard
High pressure fluid discharge from leaks (even pin-sized) 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.

1. Check hoses, fittings, wand, trigger gun, and connections for signs of wear, cracks, looseness, or leaks. Replace as required.

2. Check and clean the nozzle orifice.

3. Unscrew garden hose from water inlet (if connected).

4. Unscrew inlet filter. 3) Remove filter screen. 4) Run water through filter screen to clean. 5) Reassemble
   FIG06862
   FILTER
   Change Pump Oil
   Change the pump oil after the first 50 hours of use, and then after every 3 months or 500 hours of use after that. 1. Remove drain plug from pump. 2. Drain pump oil into suitable container and dispose
   of responsibly. 3. Reinstall oil drain plug. 4. Make sure unit is sitting level. 5. Fill pump to the middle of sight glass (or at the
   indicator line on the dip stick). Use 15 oz. of SAE 30 Non-Detergent Oil. Replace oil fill cap.
   OIL FILL CAP

Clean Inlet Filter
Clean the inlet filter before each use.

WARNING: Filter Disposal
When cleaning filters, check whether dangerous chemicals have been used with the filter and take any precautions that may be recommended by the manufacturer of these chemicals. Always dispose of hazardous fluids per local, state, and national guidelines.

SIGHT GLASS OIL DRAIN PLUG

FIG06859

28

Maintenance & Repair

Drive Belt Maintenance
Check drive belt tension after first 24 hours of running and then routinely with each oil change. Tighten or replace belts as needed. Always tighten belts if slipping.
WARNING: Filter Disposal
Belt slippage can cause static electricity build-up, which may result in sparking. Fire ignition can result.

6. Ensure all belts are the same tension. 7) Re-tighten pump mounting bolts. Torque to 29.4 ft-
   lbs. 8) Replace belt guard.
   WARNING: Entanglement
   Do not operate unless belt guard is in place to prevent access to rotating parts. Clothing or hair can become rapidly entangled in unguarded rotating parts, resulting in serious injury or death.

Instructions: 1) Make sure engine is off and spark plug wire is
removed. 2) Remove belt guard. See “Parts Breakdown” section
of this manual for location. 3) Loosen pump mounting bolts (4). 4) Inspect belts for wear/damage. Replace as needed.
When replacing belts, always replace all ­ don’t mix old and new belts. 5) Tighten tension bolt to achieve the recommended belt tension specified below. (Tightening the tension bolt pulls the pump away from the engine, tightening all two belts simultaneously.)

Tension Spec
Rib/strand Deflections Distance Rib/Strand Deflection Force

New Belt
0.15 in.
6.2 lb.

Used Belt
0.15 in.
6.2 lb.

Deflection Distance

Note: Some general rules of belt tension are:

Clean and inspect the spark Arrester on muffler If the engine has been running, the muffler and spark arrester will be hot. Allow those to cool before servicing the spark arrester. Tools needed: Wire brush and Philip’s head screwdriver 1) Remove the securing screw from the top of the
spark arrester. 2) Slide the spark arrester off the exhaust pipe. 3) Inspect the spark arrester mesh (screen). Replace
spark arrester if mesh (screen) is damaged. 4) Use a wire brush to lightly remove the carbon
deposits from the spark arrester mesh (screen). Be careful to avoid damaging the mesh (screen). 5) Slide the spark arrester over the exhaust pipe and align the hole to the 12 o’clock position. 6) Secure the spark arrester using the supplied screw.
NOTE TO COMMERCIAL USERS: All mechanical equipment, no matter how well designed, will need maintenance and repairs. A NorthStar pressure washer is no exception. At times, a NorthStar pressure washer may become inoperable because repairs are required. 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.

· The ideal tension is the lowest tension without belt slippage.
· Over tightening decreases belt and bearing life. · Keep belts clean and free of foreign material that
may cause slippage.

IMPORTANT: Replacement Parts
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.

· Do not apply belt dressing, which can cause damage and early belt failure.

Contact NorthStar Product Support at 1-800-270-0810 for any
questions, problems, or parts orders.

29

Troubleshooting

This section provides a list of the more frequently encountered pressure washer malfunctions, their causes, and corrective actions. Some corrective actions can be performed by the operator or maintenance personnel, and others may require assistance of a Service Center. Call NorthStar Product Support @ 1-800-270-0810 for service center locations.

Causes Low oil shutdown* Cold engine No fuel Pressure build-up from initial use Engine not turned ON Spark plug wire not attached
Causes Insufficient water supply Plugged inlet screen Need to use high pressure nozzle Plugged nozzle Worn nozzle Leak in high pressure line
Causes Adjustment knob turned OFF Need to use different nozzle Back pressure from extra-long hose Leak in clear chemical hose Chemical strainer not submerged

ENGINE WILL NOT START Solutions Fill engine with the adequate amount of oil Choke engine to start Add gas to fuel tank ­ make sure fuel shutoff valve is open Trigger spray gun to relieve pressure Place ON/OFF switch in the ON position Attach spark plug wire to spark plug
LOW/SURGING PRESSURE Solutions Increase water flow ­ check for kinked or pinched hose Pull out and clean screen carefully Change to the green, yellow, white, or red nozzle Remove nozzle, check for blockage Replace nozzle Fix leaks
NO CHEMICAL INJECTION Solutions Rotate adjustment knob counter-clockwise Change to the black nozzle Try shorter high pressure hose Replace hose. Use hose clamps if necessary Make sure strainer is completely submerged in solution

30

Parts Explosion- Model #1571493-Rev H

69

40

51

93

42

90

1

2

95

55

47

3

37 53

57

56

38 54 39
96 95 51 26
97 25 28
27 85

4

30

91

29

5

58

52

31

6

32

14

79

77

67

8

68

75 94 9

81

12 13

74 24

83

7

60

33 70 34

35

36

82

80

62

78

41 86

87

45

10

11

59

76 88

51

28

2

97 20 46

92

21

73

84 23 64 19

71

43 44
49 48 50
17

16 15

61

18

72 89 65 63

22

FIG06865

31

Parts Explosion- Model #1571493-Rev H (CONT’D)

REF#
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
29
30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49

ITEM
791947 801490 787525 789085 800994 783260 783250 783333 783410 783264 784957 780061 781341 82100 305200 800484 787446 787445 31332 804630 788618 15431 801012 801014 785768 801491 44607 803568
31881
35198 777416 777417 35226 777419 777418 A157207 30747 785459 2215 788918 801015 783114 791308 777421 777420 777422 785290 777396 777915

DESCRIPTION
TANK, FUEL 11 GAL W/1/4 PORT HOSE, 1/4″ FUEL LINE FUEL VALVE TANK BAR MOUNT PW FRAME, V-TWINS UPPER MOUNTING BRACKET HEADER ASSEMBLY MUFFLER GASKET MUFFLER CANISTER LOWER MOUNTING BRACKET MUFFLER SHIM HEAT SHIELD SPARK ARRESTER WASHER,SPLIT LOCK Z 5/16″ WHEEL RETAINER 15″ FLAT FREE WHEEL BATTERY CABLE, NEGATIVE BATTERY CABLE, POSITIVE PROTECTIVE SLEEVE (SOLD BY FOOT) CARBON CANISTER (1280CC) CARBON CANISTOR RING LARGE SHOCK BUMPERS 1571493 ENGINE ISO BASE, WELDMENT 1571493 BELT GUARD SIDE WLDT 3/8″ x 1/4″ HOSE MENDER HOSE, 3/8″ FUEL LINE HONDA GX690 ENGINE HOSE, 3/16″ FUEL LINE HEAT REFLECTIVE SLEEVE (SOLD BY FOOT) GROMMET,7/16 ID-14GA-16A ENGINE SHEAVE BUSHING, ENGINE SHEAVE COGGED BELT, BX36 BUSHING, PUMP SHEAVE PUMP SHEAVE PUMP,~COMET TWS 5050S HANDLE GRIP HANDLE HANDLE BUMPERS TANK DECAL 1571493 BELT GUARD SIDE PLATE FUEL CAP WITH STRAINER COUPLER, 1/4″ F NPT 48″ LANCE W/ GRIP GUN HANDLE, 5000 PSI COUPLER, 3/8″ MNPT, SS FUNNEL 50 FT HOSE, 5000 PSI NIPPLE, 3/8″ FNPT, SS

QTY
1 3 FT
1 1 1 1 1 1 1 1 1 1 1 1 2 2 1 1 .75 FT 1 1 2 1 1 1 .25 FT 1 1.08 FT
2.09 FT
5 1 1 3 1 1 1 2 2 2 2 1 1 1 1 1 1 1 1 1

REF#
50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97

ITEM
777914 777834 803866 786756 38070 789228 787259 791322 787307 788746 801016 801011 801013 787453 787620 32567
781070 781071 786836 82010 82017 82018 82021 82025 82047 82049 82084 82095 82143 82241 82313 82345 82022 82023 82026 82464 82013 82015 82019 82085 82070 82009 82011 82044 801490 30746 803569

DESCRIPTION
COUPLER, 3/8″ FNPT, SS 1/4″ HOSE CLAMP NOZZLE, 4 PACK, #4.5 6″ LANYARD 3/8″ x 2-1/2″ COTTERLESS PIN TANK SHIELD RUBBER GROMMET BUMPERS TANK BUMPER MOUNT, SHORT TANK BUMPER MOUNT PUMP MOUNT PLATE 1571493 BELT GUARD TOP WLDT 1571493 BASE WELDMENT BELT GUARD ENGINE PLATE BATTERY STOP BATTERY TIE PLATE MOUNT, ISO 30 DURO RUBBER BOLT,M8 X 14MM-STEEL BOLT, M6 X 12MM FITTING, TANK VENT BOLT,1/4″-20 X 1 HHSF GR5Z BOLT,5/16″-18 X 1 1/2″ HHSF GR5Z BOLT, 5/16″-18 X 2 HHSF GR5Z WASHER, 5/16″ USS FLAT Z BOLT,HHSF GR5Z 3/8″-16 X 1 3/4″ WASHER, M8 RIB Z WASHER, M10 RIB Z WASHER, 1/4″ LOCK Z BOLT,HHSF GR5Z 5/16″-18 X 2 1/2″ KEY, SHAFT 1/4″ X 1 3/4″ SHCS, M10-1.5 X 20MM ZINC SHCS, M8 1-1/4″ X 20 WASHER, SPLIT LOCK 3/8″ZINC BOLT, 3/8″-16 X 3/4 HHSF Z BOLT, 3/8″-16 X 1 HHSF GR5Z NUT, 3/8″-16 SER. FLG Z HHCS,GR5 3/8″-16 X 5 ZINC NUT, 1/4″-20 SER.FLG Z HHSF,5/16″-18 X 3/4 GR NUT, 5/16″-18 SER. FLAG Z WASHER, 1/4″ USS FLAT WASHER Z BOLT, 1/4″-20 X 1/2″ HHSF GR5Z BOLT, 1/4″-20 X 3/4″ HHSF GR5Z BOLT, 1/4″-20 X 1 1/4″ HHSF GR5Z SCREW,M8-1.25 X 16 HHCS GR8.8Z HOSE, 1/4″ 3/8″ HOSE CLAMP 7/16″ SPRING ACTION HOSE CLAMP

QTY
1 6 1 2
2 1 7 1 3 1 1 1 1 1 1 4 2 3 1 2 4 6 16 3 5 4 2 1 1 4 3 4 2 4 9 5 19 5 15 5 11 9 4 1 2.5FT 2 2

32

Pump Assembly ­ Comet TWS

22 23

10 1

13 24

12

17

8

9

7

6

3 14

5

15 20 19 18 21 16 11

REF#
1 2 3 4 5 6 7 8 9 10 11 12

ITEM
805695 777119 2294 777375 35918 777395 789668 805557 221222 777376 803643 A157207

DESCRIPTION
1/2″ HOSE ­ 28″ 1/2″ HOSE CLAMP 1/2″ NPT x 1/2″ HOSE BARB UNLOADER VALVE 1/4″ THERMAL PROTECTOR 3/8″ FNPT QC NIPPLE, SS INJECTOR, SS 1/4″ CHEMICAL HOSE ­ 36″ CHEMICAL STRAINER SAFETY RELIEF VALVE 1/2″ INLET FILTER COMET TWS5050S

QTY
1 2 1 1 1 1 1 1 1 1 1 1

REF#
13 14 15 16 17 18 19 20 21 22 23

ITEM
786894 801490 777834 777340 777639 32808 777423 38584 30048 777837 30511

DESCRIPTION
1/4 MPT X 3/8 FPT ELBOW 1/4″ HOSE (SOLD BY FOOT) 1/4″ HOSE CLAMP 1/4″ MNPT x 1/4″ HB 1/2″ STREET TEE 3/8″NPT x1/2″HB ELBOW 1/4″MNPT x 3/8″ FNPT EASY START VALVE, 3/8″ NPT REDUCER 8MP-6FP 3/8″ PLUG 1/2″ PLUG

QTY
1 1.75 FT
2 1 1 1 1 1 1 1 1

33

Model
TWS5050S

Pump Exploded View- TWS5050S

34

Pump Exploded View- TWS5050S (cont’d)

Ref # Part # Description

1 CO2811008400 WASHER

2 CO3200000700 PLUG, 3/8″

3 CO3202001500 CAP, G1/2″

4 CO2811008600 WASHER

5 Not Available MANIFOLD

6 CO3200000400 PLUG, 1/4″

7 CO3609017900 SCREW, M10 X 100

9 CO1210015300 O-RING

10

CO3009014400

SUCTION/DELIVERY VALVE SEAT

11 CO3604001700 SUCTION/DELIVERY SEAT

12

CO1802017700

SUCTION/DELIVERY VALVE SPRING

13 CO1205004300 SUCTION/DELIVERY CAGE

14 CO3202031600 VALVE PLUG KIT + ORING

15 CO1210002100 O-RING

16 CO0009028900 ANTI-EXTRUSION RING

17 CO0600005400 SPECIAL BOLT

18 CO2811008200 WASHER

19 CO0202004200 CERAMIC BUSHING

20 CO2812009400 WASHER

21 CO1210072700 O-RING

22 CO0009017000 ANTI-EXTRUSION RING

23 CO2409010900 PISTON

24 CO3011002600 GUDGEON PIN

26 CO1210034900 O-RING

27 CO0402026900 COVER

28 CO3609003200 SCREW, M6 X 20

29 CO1210004800 O-RING

30 CO3201002700 PLUG, G1/2″

31 CO3200000700 PLUG, G3/8″

Qty Ref # Part # Description

Qty

1

32 CO1210044100 O-RING

1

1

33 CO3609015700 SCREW, M8 X 18

4

1

34 CO1009019600 FLANGE

1

1

35 CO1210044800 O-RING

1

1

36 CO0440002800 ROLLER BEARING

1

1

37 CO3200007500 OIL DIPSTICK

1

8

38 Not Available PUMP CRANKCASE

1

6

39 CO1602005500 KEY, 8 X 7 X 35

1

6

41 CO3609015700 SCREW, M8 X 18

4

6

42 CO0019003200 OIL SEAL

1

6

43 CO1009019500 FLANGE

1

6

CO0601030400 SPACER, 0.05

1

6

CO0601030500 SPACER, 0.1

1

6

44 CO0601030600 SPACER, 0.19

1

6

CO0601030700 SPACER, 0.25

1

3

45 CO1210044800 O-RING

1

3

46 CO0440002800 ROLLER BEARING

1

3

47 CO0019012200 OIL SEAL

3

3

48 CO1210054700 O-RING

3

3

49 CO0009028500 PACKING RETAINER

3

3

50 CO1241007400 PACKING

3

3

51 CO0009028400 PACKING RETAINER

3

3

52 CO1241007300 PACKING

3

1

60 CO0205007100 CONNECTING ROD

3

1

61 Not Available THROUGHSHAFT (5050S)

1

6

101 CO5019064500 WATER SEAL KIT

1

1

102 CO2409011600 PISTON KIT

1

1

103 CO5019064900 OIL SEAL KIT

1

1

104 CO5025002100 COMPLETE VALVE KIT

1

35

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 Product Warranty Item #
1571493

Consumer Warranty Period 4 years from date of purchase by user

Commercial Warranty Period 2 years from date of purchase by user

NorthStar Pump Warranty Item #
1571493

Consumer Warranty Period 4 years from date of purchase by user

Commercial Warranty Period 3 years from date of purchase by user

Engine Warranty Item #
1571493

Consumer Warranty Period 3 years from date of purchase by user

Commercial Warranty Period 3 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 maintenance. If a part is no longer available, the part may be replaced with a similar part of equal function. Any misuse, abuse, alteration or improper installation or operations will void warranty. Determining whether a part is to be replaced or repaired is the sole decision of NorthStar. NorthStar will not provide for replacement of complete products due to defective parts. Any costs incurred due to replacement or repair of items outside of a NorthStar approved facility is the responsibility of the buyer and not covered under warranty. Transportation costs to and from service center is the responsibility of the customer.
In addition to the normal warranty, NorthStar shall warrant any normal wear item from defects in material or workmanship for a period of 90 days from the date of purchase by user. Normal wear items include, but are not limited to, nozzles, quick connect fittings, valves, seals, hoses, springs, O-rings, unloader valves, belts and filter elements.
This warranty specifically excludes the following; failure of parts due to damage caused by accident, fire, flood, windstorm, acts of God, applications not approved by NorthStar in writing, corrosion caused by chemicals, use of replacement parts which do not conform to manufacturer’s specifications, damage to accessory parts such as starting batteries, damage related to rodent and/or insect infestation and damage caused by vandalism. Additional exclusions: loss of running time, inconvenience, loss of income, or loss of use, including any implied warranty of merchantability of fitness for a specific use. Also, Outdoor Power Equipment needs periodic parts and service to perform well, and this warranty does not cover instances when normal use has exhausted the life of a component or the engine.
This warranty does not cover any personal injury or damage to surrounding property caused by failure of any part. Repair or replacement of parts does not extend the warranty period.
The engine warranty is covered under the terms and conditions as outlined by the engine manufactures warranty contained herein and is the sole responsibility of the engine manufacture. Normal engine maintenance such as spark plugs, air filters, adjustments, fuel system cleaning and obstruction due to build up is not covered by this NorthStar warranty.

Please fill in the following information and have it on hand when you call in on a warranty claim.

Customer Number: ____ NorthStar Serial Number:

Date of Purchase: _____

Item Number: ___

36

This page has intentionally been left blank.
37

CALIFORNIA PROPOSITION 65 INFORMATION
WARNING: This product can expose you to chemicals including gasoline engine exhaust, which is known to the State of California to cause cancer, and carbon monoxide, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Assembled by Northern Tool & Equipment Company, Inc.
Burnsville, MN 55306 www.northerntool.com
38

References

• northerntool.com
• P65Warnings.ca.gov
• p65warnings.ca.gov/

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