NORTHSTAR M1574402D Pressure Washers Owner’s Manual
- July 9, 2024
- NORTHSTAR
Table of Contents
M1574402D Pressure Washers
Specifications
Model: M1574402D
Item Number: 1574402, 1574404
Pressure Washer Type: Cold-water high-pressure
spray
Power Source: Gasoline internal combustion
engine
About Your Pressure Washer
A pressure washer is a machine that cleans dirty surfaces with
high-pressure water. It can incorporate cleaning chemicals into the
spray for enhanced cleaning.
Installation/Set-up
1. Inspect the pressure washer upon delivery for missing or
damaged components.
2. Add engine oil as the engine is shipped without oil. Refer to
the engine manual for oil capacity and viscosity
recommendations.
3. The pump is shipped with oil.
Operation
1. Ensure that the water flow rate from your water supply is 20%
higher than the pressure washer’s flow rate.
2. Use only approved pressure washer chemicals designed for
high-pressure use.
Maintenance
1. Do not allow water to freeze in the pump, hose, or spray
gun(s) during storage.
2. Engine and pump require periodic inspection and servicing to
maintain efficient operation. Refer to the maintenance schedule for
servicing frequency.
Storage
Ensure water does not freeze in the pump, hose, or spray gun(s)
during storage. Refer to specific storage instructions for more
information.
FAQ
Q: What should I do if I find missing or damaged components
upon delivery?
A: Refer to the Initial Set-Up section in the manual for
instructions on where to report missing or damaged parts.
Q: Can I use any cleaning chemicals with this pressure
washer?
A: Use only approved pressure washer chemicals designed for
high-pressure use to ensure proper functioning of the
equipment.
Q: How often should I service the engine and pump?
A: Refer to the Maintenance Schedule Summary in the manual for
the recommended frequency of servicing to maintain efficient
operation of the pressure washer.
M1574402D
ITEM NUMBER: 1574402, 1574404
SERIAL NUMBER: _____
Owner’s Manual Pressure Washer: Machine that cleans dirty surfaces with
high pressure water. 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. · 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.
Pump: Pump is shipped with oil.
Water Flow Requirements: Make sure your supply water flow rate is 20% higher
than the pressure washer’s flow rate (see “Operations” 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.
Storage: Do not allow water to freeze in the pump, hose, or spray gun(s). See
“Storage” for more information.
Maintenance Schedule: Engine and pump 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
Table of Contents
Equipment Protection Quick Facts
………………………………………………………………………………………………………………………. 1
TABLE OF CONTENTS………………………………………………………………………………………………………………………………2
ABOUT YOUR PRESSURE WASHER………………………………………………………………………………………………………….4
SPECIFICATIONS ……………………………………………………………………………………………………………………………………..5
COMPONENT IDENTIFICATION………………………………………………………………………………………………………………….6
SAFETY ……………………………………………………………………………………………………………………………………………………7 Hazard Signal
Word Definitions ………………………………………………………………………………………………………………………….. 7
SAFETY LABELING …………………………………………………………………………………………………………………………………..8 Safety
Decal Locations ……………………………………………………………………………………………………………………………………… 8
INITIAL SET-UP……………………………………………………………………………………………………………………………………….10 Step 1.
Inspect & Unpack …………………………………………………………………………………………………………………………………… 10 Step 2.
Assembly ………………………………………………………………………………………………………………………………………………. 11 Handle &
Billboard Assembly …………………………………………………………………………………………………………………………… 11 Spray
Gun Assembly ………………………………………………………………………………………………………………………………………. 11 Step 3.
Select Suitable Location…………………………………………………………………………………………………………………………. 11
Moving and Handling ………………………………………………………………………………………………………………………………………. 11
Outdoor Use Only …………………………………………………………………………………………………………………………………………… 11
Install Spark Arrestor (if required)
……………………………………………………………………………………………………………………… 12
OPERATION …………………………………………………………………………………………………………………………………………… 13 Follow
Safety Rules for Operation ……………………………………………………………………………………………………………………… 13
Preparing for Operation ……………………………………………………………………………………………………………………………………..
14 Check/Add Engine Oil ……………………………………………………………………………………………………………………………………… 14
Inspect Fuel System/Check for Leaks…………………………………………………………………………………………………………………
15 Connect Hoses, Water Supply, and Spray Nozzle
……………………………………………………………………………………………….. 16 Prime the Water
Supply……………………………………………………………………………………………………………………………………… 17 Set Up for
Chemical Spray (if desired)………………………………………………………………………………………………………………… 18
Start-Up Procedures ………………………………………………………………………………………………………………………………………….. 19
Start the Engine to Power the Pump
………………………………………………………………………………………………………………….. 19 Apply Cleaning Chemical (if
desired) …………………………………………………………………………………………………………………. 19 Begin High Pressure
Spray………………………………………………………………………………………………………………………………. 19 Shutdown
…………………………………………………………………………………………………………………………………………………………. 20
STORAGE………………………………………………………………………………………………………………………………………………. 21 Between Use
Storage ………………………………………………………………………………………………………………………………………… 21 Prepare
Pressure Washer for Freezing Conditions ………………………………………………………………………………………………
21 Prepare Engine for Long Term Storage
………………………………………………………………………………………………………………. 22 Prepare Pressure Washer for
Storage ………………………………………………………………………………………………………………… 22
MAINTENANCE & REPAIR ………………………………………………………………………………………………………………………. 23
MAINTENANCE SCHEDULE SUMMARY …………………………………………………………………………………………………… 23
DETAILED INSTRUCTIONS MAINTENANCE & REPAIR ………………………………………………………………………….. 23
Follow Safety Rules ………………………………………………………………………………………………………………………………………… 23
Keep Pressure Washer Clean…………………………………………………………………………………………………………………………… 23
Inspect Spray System ……………………………………………………………………………………………………………………………………… 23
2
Clean Inlet Filter ……………………………………………………………………………………………………………………………………………… 24
TROUBLESHOOTING ……………………………………………………………………………………………………………………………… 26 PARTS
EXPLOSION- MODEL #1574402, 1574404………………………………………………………………………………………27 PARTS
LIST – MODEL #1574402, 1574404…………………………………………………………………………………………………28 PUMP
EXPLODED VIEW 803771 …………………………………………………………………………………………………………… 29 PUMP PARTS
LIST 803771 …………………………………………………………………………………………………………………… 30 LIMITED WARRANTY
……………………………………………………………………………………………………………………………… 32 LIMITED WARRANTY CONTINUED
………………………………………………………………………………………………………….. 33 CALIFORNIA PROPOSITION 65
INFORMATION ……………………………………………………………………………………….. 34
3
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.
Power Source. The pressure washer is powered by a gasoline engine.
Supplies Required. Normal operation will require you to supply:
· Gasoline · Engine oil · 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 and non-slip protective footwear. Cleaning chemicals may
require the use of respiration mask; refer to the chemical label for further
instruction.
Adult Control only. Only trained adults should set up and operate the pressure
washer. Do not let children operate the pressure washer.
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.
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 pressure washer 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
1-800-2700810.
4
Specifications
1574402
FLOW OUTPUT
PSI (bar)
3200 (221)
GPM (I/min)
2.5 (9.4)
Max Water Temp
104° F (40°C)
ENGINE
Engine
BRIGGS CR 950
Displacement
208 cc
DIMENSIONS/COMPONENTS
Length
29.77
Width
19.80
Height
20.27
Pump Model
V-PW 29/2.6
SUPPLIES REQUIRED (not included)
Engine Oil
Refer to Engine Owner’s Manual
1574404
FLOW OUTPUT
PSI (bar)
3300 (228)
GPM (I/min)
2.6 (9.8)
Max Water Temp
104° F (40°C)
ENGINE
Engine
KOHLER SH265
Displacement
196cc
DIMENSIONS/COMPONENTS
Length
29.77
Width
19.80
Height
20.27
Pump Model
V-PW 29/2.6
SUPPLIES REQUIRED (not included)
Engine Oil
Refer to Engine Owner’s Manual
5
Component Identification
1. Handle: Designed for easy cart movement. 2. Pressure Hose: Attach quick
couplers to gun and water outlet. 3. Chemical Hose: Submerge in cleaning
solution. 4. Water Pump: Inspect for loose/broken parts prior to each use. A
device that moves fluid through a
combination of suction and displacement. 5. Engine: Engine provides years of
reliable use. Air cooled engine that powers the pump. 6. Nozzles: Change
nozzles for different spray patterns. 7. Spray Gun: Always use two hands for
safe operation. 8. Trigger: Actuate to allow pressurized water to flow out of
spray gun. 9. High Pressure Outlet: Connect your high-pressure hose. 10.
Garden Hose Inlet: Connect water supply for pump 11. Lifting Points: Lift the
pressure washer from these points when transporting.
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.
Location 1 2
On-Product Warning Labels
Part Numbers
Description
790852
Burn Hazard Decal
803766
Fuel Fire Explosion Hazard
8
Safety Decals
Safety Labeling
To order replacement safety labels, call NorthStar Product Support at
1-800-270-0810.
9
Initial Set-Up
Step 1. Inspect & Unpack
Upon receiving your item check for missing or damaged parts. 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.
Engine/Pump/Base Assembly
Billboard with Screw
Lance
Spray Gun
Pressure Hose
NOZZLES
Any Questions, Comments, Problems or Parts Orders call NorthStar Product
Support at 1-800-270-0810.
10
Initial Set-Up
Step 2. Assembly
Note: Remove contents from packaging to begin assembly.
Handle & Billboard Assembly
1. Remove the backward handle. 2. Re-install handle in correct orientation
using:
a. (2) Carriage Bolts (82233) b. (2) Nut, Flange Nylock 5/16″(82630) 3. Attach
billboard to handle using: a. (4) Screws (803750) 4. Insert the Nozzle’s into
the billboard.
Spray Gun Assembly
5. Attach the Lance to Spray Gun a.) Tighten spin-on coupler hand tight.
Note: The O-rings create a seal so there is no need to tighten with a wrench.
Step 3. Select Suitable Location 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 the handles to manually move the
pressure washer. · Push the pressure washer in front of you or pull the
pressure washer behind you.
· To turn, pull up slightly on the handles and pivot the pressure washer on
its wheels.
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 the bumper and handle. Do not use the pump or engine as a lifting
point.
Outdoor Use Only
1. 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.
Select a suitable outdoor location: 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 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. Position the pressure
washer so that the exhaust fumes will not be directed towards people or
building air intakes. 4. Do not locate and use the pressure washer in the
presence of flammable vapors, dust, gases, or other potentially combustible
materials. 5. 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. 6. 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 pick-up truck
beds.
11
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
pressure washer. 3. Do not place any objects against or on top of the pressure
washer. 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 backpressure, 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 pressure washer 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 Arrestor (if required)
Equip engine with spark arrestor if pressure washer 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.
12
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 safe use practices.
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 pressure washer 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 devices is recommended for persons working within
15-20 feet of the running pressure washer for an extended period of time. Eye
Protection. Wear ANSI “Z87.1” required safety glasses when operating or
servicing the pressure washer. Pressurized spray from this pressure washer can
cause severe injury to the eyes. Small objects can become airborne as the
spray contacts them.
NOTE!
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 the system quickly if needed. 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 pressure washer. 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 severe electrical shock or electrocution. Do not point gun at people
or animal. It may result in serious injury or death. Hot exhaust/parts. Stay
clear of engine exhaust. Never touch a hot engine muffler, or other hot
surfaces. All are very hot and will burn you. Do not direct spray at this
pressure washer. Do not attempt to clean this pressure washer 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.
13
Operation
Avoid inhalation of exhaust. Running this pressure washer indoors can kill you
in minutes. Exhaust contains carbon monoxide. This is a poison you cannot see
or smell. Never pull by hose. Do not move this pressure washer 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 pressure washer 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.
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 Engine Oil
Use the recommended oil type for your engine and expected ambient conditions.
(See engine Owner’s Manual for oil type and capacity, and more detailed oil
check/fill instructions.)
WARNING Burn Hazard
Never open oil port while engine is running. Hot oil can spray over face and
body.
Notes: · Low oil shutdown feature prevents the engine from
starting without sufficient oil. · Engine is shipped without oil. You must add
oil
before first use.
Wear Personal Protective Gear
WARNING
Wear personal protective gear to prevent: – Eye and skin injection injury from
high pressure spray – Eye injury from flying debris
1. Wear waterproof gloves, ANSI Z87.1 compliant safety goggles, face
protection, and protective clothing when operating the pressure washer.
14
Operation
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
Always follow these general safety rules when fueling:
1. Turn pressure washer off and allow to cool for at least two minutes before
removing any 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 an 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 pickup
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:
– Use only a UL-approved portable gasoline container to transfer the gasoline
to engine’s tank.
– 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 a ULapproved container.
Inspect Fuel System/Check for Leaks
Inspect the engine fuel system and check for leaks 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
15
Operation
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 pressure washer 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 pressure washer.
· loose connections · loose or missing fuel hose clamps · damaged fuel tank or
· 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.
Perform Scheduled Maintenance, As needed
Make sure that any other regular maintenance has been performed as prescribed
in this manual in the “Maintenance Schedule Summary” section. Refer to the
engine Owner’s manual for engine maintenance instructions.
Connect Hoses, Water Supply, and Spray Nozzle
Position Pressure Washer for use
· 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. The
bucket must fill faster than the times listed in the table below.
Model#
Time to Fill 5 Gallon Bucket
1574402 1574404
100 sec 100 sec
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. Never use a reservoir tank as a water source. Drawing water out of a tank
may cause pump cavitation and damage to your pump. This pressure washer is
designed for a pressurized water source such as a city water faucet. However,
the water source pressure must not exceed:
Model# 1574402 1574404
Max. Inlet psi 60 psi 60 psi
5. Always use a flexible rubber hose for your water supply. Do not use rigid
piping.
Attach High Pressure Hose to Spray Gun
and 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 pressure
washer’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.
2. To attach the pressure hose to the spray gun,
spin the pressure hose’s coupler onto the spray
gun’s inlet, hand tight.
16
Operation
S pray 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
F IG05946
the nozzle firmly into the coupler on the end of the
C oupler
wand.
P res s ure Hose
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.
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.
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.
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. (Reference the flow rate table
under the Connect Hoses, Water Supply, and Nozzle” section.)
· 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.
17
Operation
Set Up for Chemical Spray (if desired) Prepare for Chemical Spray (if planning
to use)
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 no chemical passes 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. Note: An
external upstream chemical injector is not recommended for use with this
pressure washer, and if used would 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. Use
of chemicals not intended for pressure washers will void pump 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.
CAUTION Non-approved Chemicals
Non-approved chemicals can damage pressure washer components (seals, wand,
hoses, pump, etc.) and be harmful to the environment.
Prepare for Chemical Spray (If Planning to Use) 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.
18
Operation
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 Owner’s Manual for starting the
engine.
– If the engine doesn’t start on the first try, pressure may build 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. Reference “Set Up for Chemical Spray” on the previous page.
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. Apply chemicals evenly to the cleaning surface. Never use more chemical
than is necessary to clean the surface.
5. Allow the chemicals time to react with the dirt before rinsing.
6. 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.
Instructions for selecting a nozzle can be referenced in the “Connect Hoses,
Water Supply, and Spray Nozzle” section. See the subsection “Select Nozzle for
Spray Gun”.
7. 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 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.
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, or mailboxes they
may break) o light fixtures, flowerbeds, mailboxes
o unsecured, lightweight objects
19
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 — Gun kicks
back when triggered.
4. Wash from the bottom to the top, using side-toside 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.
WARNING
Warranty Void 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. 9. If temporarily interrupting spraying, rotate trigger
safety latch downward to the locked position to guard against accidental
trigger release
Spray Gun Safety Lock When not spraying, use the spray gun safety lock to
prevent accidental high-pressure discharge.
10. 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
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.
Stop the engine using the following steps: 1. Turn engine OFF. 2. Turn water
supply OFF. 3. Squeeze 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. 9. Cool engine at least five minutes before storing; a hot
engine is a fire hazard.
20
Storage
When you are finished using the pressure washer, you 1. Drain the water from the high-pressure hose and
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
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, and
· approximately 6 oz. of RV antifreeze.
4. Attach the 12″ garden hose piece with the funnel to the pump inlet.
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:
5. Pour RV antifreeze into the funnel, then pull the recoil a few times until antifreeze comes out of the pump outlet.
· If you will be storing the pressure washer in freezing conditions, follow the instructions for preparing the sprayer for storage in freezing conditions.
RV Antifreeze
· If you will not be using the pressure washer again for 30 days or more, follow the instructions
for preparing the engine for long-term storage. WARNING
Funnel
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.
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.
Hose
Garden Hose Water Inlet on Pump
OR 1. Obtain the materials you will need:
· 1579000 NorthStar Pressure Washer Pump Freeze Guard.
2. Attach bottle of freeze guard to pump inlet. 3. Squeeze freeze guard
bottle until antifreeze comes
out of the pump outlet.
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.
1579000 PUMP FREEZE GUARD
GARDEN HOSE WATER INLET ON PUMP
21
Storage
Prepare Engine for Long Term Storage
First prepare the engine for long term storage if you will not be using the
pressure washer 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 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 highpressure hose until
the engine stops from lack of fuel. Drain carburetor bowl after engine has
stopped and has been allowed to cool for at least two minutes.
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.
Replace spark plug, but do not reconnect the spark plug wire.
Prepare Pressure Washer for Storage
1. Make sure the engine start switch is OFF. 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.
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.
22
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
Item Remove dust/debris accumulation Inspect fuel system Inspect spray system Clean inlet filter Check engine oil level Perform engine maintenance
Frequency As needed Each use Each use Each use Each use As specified in engine Owner’s manual
See detailed instructions for each maintenance item below. (Note: For end-of- the-season storage instructions, see the “Storage” section of this manual.)
Detailed Instructions Maintenance & Repair
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 pressure washer and
relieve system pressure before inspection or maintenance. Remove spark plug or
spark plug wire to prevent accidental starting.
· Fuel valve off. Turn fuel shut-off valve to 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.
CAUITION
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.
23
Maintenance & Repair
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.
1. Unscrew garden hose from water inlet (if connected).
2. Remove filter screen. 3. Run water through filter screen to clean. 4.
Reassemble.
· Never use a finger or skin to check for leaks.
· Never operate pressure washer 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 pressure
washer.
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.
Inspect Fuel System
Inspect the engine fuel system and check for leaks before each use.
Good
Do not start pressure washer until all needed repairs have been completed.
Water dripping or spraying, or localized
Bad
oistur
Exposed wire mesh
Bad
due to wear
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.
WARNING Filter Disposal
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
24
Maintenance & Repair
Perform Engine Maintenance
-As specified in the Engine Owner’s manual. Engine maintenance items include:
1. Changing oil and oil filter 2. Air filter check/replacement 3. Spark plug
cleaning and replacement 4. Fuel filter check/replacement 5. Inspecting and
cleaning muffler (and spark
arrestor if equipped)
Contact NorthStar Product Support at
1-800-270-0810 for any
questions, problems, or parts orders.
NOTICE:
Dispose of used motor oil in a manner that is compatible with the environment
and in accordance with local, state, and federal laws and regulations.
· Take used oil in a sealed container to your local recycling center or
service station for reclamation.
· Do not throw it in the trash, pour it on the ground, or pour it down a
drain.
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.
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.
25
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 qualified Service Center.
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 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
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
26
Parts Explosion- Model #1574402, 1574404
*1574402 SHOWN
27
Parts List – Model #1574402, 1574404
REF#
PART#
DESCRIPTION
QTY
1
803644 804255
ENGINE-BRIGGS CR950 ENGINE-KOHLER SH265
1
2
82141
KEY, SHAFT 3/16 X 1.5
1
3
803771 PUMP, V-PW29/2.6
1
4
221222 CHEMICAL STRAINER
1
5
805556 BRAIDED CHEMICAL HOSE 24″
1
6
82306
BOLT, SHCS 5/16-24 X 3/4
4
7
82047
WASHER, M8 FLAT
4
8
803750 SCREW, DTS #10-16×1-1/4″
4
9
803862 NOZZLE 4 PACK, #3.0
1
10
803688 BILLBOARD WITH DECAL
1
11
803651 HANDLE TUBE
1
12
38526
SPRAY GUN, 22MM
1
13
780841 HOSE,1/4″X25″ W/22MM
1
14
806262 RETAINING RING
2
15
2215
RUBBER FOOT
2
16
777495 NUT, NYLOCK M8-1.25
8
17
82232
SCREW, SELF TAP 1/4 X 3/4
2
18
806263 PRESSURE WASHER CART
1
20
803672 TIRE, 10″ FLAT FREE
2
21
82233
BOLT, CARRIAGE GR5Z 5/16-18X2
2
22
801058 DECAL, MADE IN USA
1
23
82630
NUT, FLANGE NYLOCK 5/16″
2
24
795564 ISO MOUNT, M8
4
25
803669 LANCE
1
26
791308 NOZZLE QUICK COUPLER
1
MODEL#
1574402 1574404
ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL
ALL ALL ALL ALL ALL
28
Pump Exploded View 803771
29
Pump Parts List 803771
REF# KIT NUMBER DESCRIPTION
QTY
REF# KIT NUMBER DESCRIPTION
QTY
1 Not Available Swashplate Box
1
43
Kit #4
O-ring 12.42X1.78
1
2 Not Available Oil sealB35528 3 Not Available Bearing 2
1 2
44
Kit #4
Closing retainer 6.2 x9x1.25
1
4 Not Available Holding frame Assy. 2
2
45
Kit #4
0 ring 6.07X1.78
1
5 Not Available Bearing 3
1
46
Kit #4
Valve rod
1
6 Not Available Swashplate
1
47
Kit #4
O-ring 8.5X1.8
1
7 Not Available Bearing 1 8 Not Available Retaining ring 12 9 Not Available Clamp
1 3
48
Kit #4
Open retaining ring 8.7X11.6X1.25
1
3
49
Kit #4
Top pin spring
1
10 Not Available Back spring
3
50
Kit #4
Apex pin
1
11 Not Available Plunger
12 Not Available O-ring 73X2.65
13 Not Available Plunger base
14 Not Available Screw M8X25 10.9
15
Kit #1
Reciprocating oil seal TC4/12X20X6
16
Kit #1
Cushion
3
51
Kit #4
Upper seat
1
1 1
52
Kit #4
Opening retainer 10.3 x13 x1.25
1
4
53
Kit #4
O-ring 10×1.8
1
54
Kit #4
Steel ball 7/9Cr18
1
3
55
Kit #4
Base
1
3
56
Kit #4
Outlet Valve Body
1
17
Kit #1
O-ring22.4X1.8
3
57 Not Available Screw M5X30 12.9
5
18
Kit #1
ROY/12X20X4
3
58
Kit #4
Plug R1/16
1
19
Kit #1
Auxiliary sealing ring
3
59
Kit #3
O-ring 7.65X1.78
1
20
Kit #1
Water seal gasket
3
60
Kit #3
Suction spring
1
21
Kit #1
Water seal ROY / 12 x18x4
3
61
Kit #3
Steel ball 3/16″
1
22
Kit #2
Valve bonnet
6
62
Kit #3
O-ring 3.68X1.78
1
23
Kit #2
Inlet and Outlet Valve Spring 6
63
Kit #3
Pipette tip
1
24
Kit #2
Inlet and Outlet Valve Gasket 6
64
Kit #3
O-ring 4X2.65
1
25
Kit #2
Valve seat
26
Kit #2
O-ring 4.5X1.8
6
65
Kit #3
Check spool
1
1
66
Kit #3
Backstop spring
1
27
Kit #2
O-ring 9×1.8
6
67
Kit #3
O-ring 9X1.8
2
28
Kit #5
Inlet strainer
29
Kit #5
Rubber gasket
1
68
Kit #3
Venturi
1
1
69
Kit #3
O-ring 10X1.8
1
30
Kit #5
Water supply connector
1
70
Kit #3
Short outlet joint
1
31
Kit #5
Hand nut
1
71
Kit #4
U-shaped pin
1
32
Kit #5 and Kit #3
O-ring 14X1.8
72*
Kit #6
Thermal protector
1
2
33 Not Available Pump Head 34 Not Available Screw M8X45 12.9
1 * Ref item#72 not shown in the pump exploded view image.
3
35
Kit #2 and Kit #4
O-ring 12
1
36
Kit #4
R2 1/8 laryngeal plug-8.8
2
37
Kit #2 and Kit #4
O-ring 14
4
38
Kit #4
Nut M6/ galvanized
1
39
Kit #4
Pressure adjusting nut
1
40
Kit #4
Pressure adjusting spring
1
41
Kit #4
Maintaining washer
1
42
Kit #4
Valve sleeve
1
30
Pump Parts List 803771
KIT # 1 2 3
4
5 6
DESCRIPTION Seal Kit Valve Kit
Outlet Kit w/ Injector
Unloader Manifold Kit
Inlet Kit Thermal Relief
ITEM # 15 16 17 18 19 20 21 22 23 24 25 26 27 35 37 59 60 61 62 63 64 65 66 67
68 69 32 70 35 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 36
58 71 28 29 30 31
32 72
ITEMS INCLUDED Reciprocating oil seal TC4/12X20X6 Cushion O-ring22.4X1.8
ROY/12X20X4 Auxiliary sealing ring Water seal gasket Water seal ROY / 12 x18x4
Valve bonnet Inlet and Outlet Valve Spring Inlet and Outlet Valve Gasket Valve
seat O-ring 4.5X1.8 O-ring 9×1.8 (Shore hardness 80) O-ring 12 (inner
diameter) X2 O-ring 14 (inside diameter) X2 O-ring 7.65X1.78 Suction spring
Steel ball 3/16″(0Cr18Ni9) O-ring 3.68X1.78 Pipette tip O-ring 4X2.65 Check
spool Backstop spring O-ring 9X1.8 Venturi O-ring 10X1.8 O-ring 14X1.8 Short
outlet joint O-ring 12 (inner diameter) X2 O-ring 14 (inside diameter) X2 Nut
M6/ galvanized Pressure adjusting nut Pressure adjusting spring Maintaining
washer Valve sleeve O-ring 12.42X1.78(shore hardness 90) Closing retainer 6.2
x9x1.25 0 ring 6.07X1.78(shore hardness 90) Valve rod O-ring 8.5X1.8 (Shaw
hardness 90) Open retaining ring 8.7X11.6X1.25 Top pin spring Apex pin Upper
seat Opening retainer 10.3 x13 x1.25 O-ring 10×1.8 (shore hardness 90) Steel
ball 7/9Cr18 Base Outlet Valve Body (Metal Processing) R2 1/8 laryngeal
plug-8.8 Plug R1/16 U-shaped pin Inlet strainer Rubber gasket Water supply
connector Hand nut
O-ring 14X1.8 Thermal protector
QTY
KIT PART #
KIT QTY
3
3
3
3
801743
1
3
3
3
6
6
6
6 1
801744
1
6
1
4
1
1
1
1
1
1
1
801745
1
1
2
1
1
2
1
1
4
1
1
1
1
1
1
1
1
1
1 1
801746
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
801747
1
1
1
1
801748
1
31
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 pressure washer requires a
due amount of care. Treat this pressure washer 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:
Item Number
ALL ALL
ALL
ALL
Item Name NorthStar
Pump
Engine
Normal Wear Items
Warranty
5 years from date of purchase
2 years from date of purchase
3 years from date of purchase
90 days from date of purchase
Details
NorthStar shall warrant structural components from failure for a period of 5
years from the date of purchase by user. Structural parts include but are not
limited to, cart, handle, billboard and bumper tube NorthStar shall warrant
the pressure washer pump to be free of defects in material and workmanship for
a period of 2 years. NorthStar makes no warranty on standard wear items such
as, but not limited to, seals, valves, seats, O-rings and pistons. The engine
warranty is covered under the terms and conditions as outlined by the engine
manufactures warranty 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. 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, high- pressure hoses, o-rings, filter elements, gun, lance, tires, and
unloader valves
“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.
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 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.
32
Limited Warranty Continued
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:
__ Date of
Purchase: ___
NorthStar Serial Number:
_ Item Number:
33
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 NorthernTool.com
34
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>