MNS15781520A
MNS15781520A
ITEM NUMBER: NS15781520
SERIAL NUMBER: _____________
Owner’s Manual
Petrol 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 petrol 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 6m (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: Check pump oil level before starting.
- Remove shipping tape and black vent plug (if present) from pump oil fill cap (CAT Pumps).
- Remove shipping plug and install vented fill cap (Comet Pumps).
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 Kincrome Tools & Equipment 1300 657 528
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 ................................................................................................................................................................... 12
Handle Assembly ................................................................................................................................................................ 12
Spray Gun Assembly .......................................................................................................................................................... 12
Step 3. Select Suitable Location........................................................................................................................................... 12
Moving and Handling .......................................................................................................................................................... 12
Outdoor Use Only ............................................................................................................................................................... 12
Install Spark Arrestor (if Required) ...................................................................................................................................... 13
OPERATION ............................................................................................................................................................... 14
Follow Safety Rules for Operation ....................................................................................................................................... 14
Preparing for Operation ........................................................................................................................................................ 15
Check/Add Oil to Pump ....................................................................................................................................................... 15
Check/Add Engine Oil ......................................................................................................................................................... 15
Inspect Fuel System/Check for Leaks ................................................................................................................................. 16
Connect Hoses, Water Supply, and Spray Nozzle .............................................................................................................. 17
Prime the Water Supply......................................................................................................................................................... 18
Set Up for Chemical Spray (if desired)................................................................................................................................. 19
Start-Up Procedures .............................................................................................................................................................. 20
Start the Engine to Power the Pump. .................................................................................................................................. 20
Apply Cleaning Chemical (If Desired) ................................................................................................................................. 20
Begin High Pressure Spray ................................................................................................................................................. 20
Shutdown ............................................................................................................................................................................... 21
STORAGE................................................................................................................................................................... 22
Between-Use Storage ............................................................................................................................................................ 22
Prepare Pressure Washer for Freezing Conditions ............................................................................................................ 22
Prepare Engine for Long Term Storage ............................................................................................................................... 22
Prepare Pressure Washer for Storage ................................................................................................................................. 23
MAINTENANCE & REPAIR ........................................................................................................................................ 24
MAINTENANCE SCHEDULE SUMMARY .................................................................................................................. 24
DETAILED INSTRUCTIONS – MAINTENANCE & REPAIR ...................................................................................... 24
Follow Safety Rules ............................................................................................................................................................ 24
Keep Pressure Washer Clean............................................................................................................................................. 24
Inspect Spray System ......................................................................................................................................................... 24
Clean Inlet Filter .................................................................................................................................................................. 25
Inspect Fuel System............................................................................................................................................................ 25
2
Check Tire Pressure ........................................................................................................................................................... 25
Perform Engine Maintenance.............................................................................................................................................. 26
Change Pump Oil ................................................................................................................................................................ 26
TROUBLESHOOTING ................................................................................................................................................ 27
PARTS EXPLOSION- MODEL # NS15781520- REV A ............................................................................................. 28
PARTS LIST- MODEL #NS15781520- REV A............................................................................................................ 29
PUMP ASSEMBLIES- MODEL #NS15781520- REV A .............................................................................................. 30
PUMP ASSEMBLIES PARTS LIST- MODEL #NS15781520- REV A ........................................................................ 31
PUMP EXPLODED VIEW- COMET AWD (MODEL NS15781520)............................................................................. 32
LIMITED WARRANTY ................................................................................................................................................ 34
3
About Your Pressure Washer
Thank you for purchasing a NorthStar Pressure Washer!
It is designed for long life, dependability, and top
performance.
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 chemical label for
further instruction.
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
petrol engine.
Adult control only. Only trained adults should set up
and operate the pressure washer. Do not let children
operate.
Supplies Required. Normal operation will require you
to supply:
 Pressure Washer pump oil
 Petrol
 Engine oil
 Personal Protection Equipment
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.
See “Specifications” section of this manual for more
detail.
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 Kincrome Tools & Equipment on
1300 657 528.
4
Specifications
NS15781520
FLOW OUTPUT
PSI (bar)
4000 (275)
3.5 (13.2)
140° F (60°C)
GPM (I/min)
Max Water Temp
ENGINE
Engine
Horsepower
Honda GX 390
389cc
DIMENSIONS/COMPONENTS
Length
86cm (34″)
Width
53.5cm (21″)
Height
96.5cm (38″)
Pump Model
Comet AWD
Pump Oil Capacity
295ml (10 oz.)
SUPPLIES REQUIRED (not included)
Engine Oil
Refer to Engine Owner’s Manual
Pump Oil (Shipped
with Oil, but refills
Mobil 1 Synthetic Oil 15W50
required
5
Component Identification
1.
2.
3.
4.
5.
Handle: Designed for easy cart movement.
Gun Hook: Store spray gun on hook.
Pressure Hose: Attach quick couplers to gun and water outlet.
Chemical Hose: Submerge in cleaning solution.
Water Pump: Inspect for loose/broken parts prior to each use. A device that moves fluid through a
combination of suction and displacement.
6. Engine: Honda engine provides years of reliable use. Air cooled engine that powers the pump.
7. Hose Hook: Store hose on hook. (Position depends on model, see Assembly Instructions section).
8. Nozzles: Change nozzles for different spray patterns.
9. Nozzle Holder: Removable device that will clip on your belt and stores nozzles.
10. Spray Gun: Always use two hands for safe operation.
11. Trigger: Actuate to allow pressurized water to flow out of spray gun.
12. High Pressure Outlet: Connect your high pressure hose.
See “Parts Explosion” for more details
6
Safety
Hazard Signal Word Definitions
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.
DANGER
WARNING (orange) indicates a hazardous situation,
which if not avoided, could result in death or serious
injury.
WARNING
CAUTION (yellow), used with the safety alert symbol,
indicates a hazardous situation, which if not avoided,
could result in minor or moderate injury.
CAUTION
CAUTION
CAUTION (yellow), without the safety alert symbol, is
used to address practices not related to personal injury.
NOTICE
NOTICE is used to address practices not related to
personal injury.
7
Safety Labeling
Safety Decal Locations
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 Kincrome Tools & Equipment at 1300 657 528.
Location
1
3
4
5
On-Product Warning Labels
Part numbers
Description
Poisonous Gas Decal
788937
Fuel Fire Explosion Hazard
788935
Warning Decal
789002
Operation Instruction
795144
8
Safety Decals
To order replacement safety labels, call
Kincrome Tools & Equipment
at 1300 657 528.
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 Kincrome Tools & Equipment at 1300 657 528.
 If complete, fill out product serial number information. See “Limited Warranty” section of this manual.
Engine/Pump/Base Assembly
Lance
Handle
Spray Gun
10
Hardware
Bag
Pressure Hose
Hardware Bag
N O Z ZLE S
Q TY 5
(M odel# 15781520) P A R T# 25450
(M odel# 15782020) P A R T# 38532
N O Z ZLE H O LD E R
Q TY 1
P A R T# 788696
C A R R IA G E B O LT
Q TY 2
P A R T# 82233
V E N TE D FILL C A P
Q TY 1
M O D E L# 15781520
N Y LO C K N U T
Q TY 2
P A R T# 777495
HOSE HOOK
Q TY 1
P A R T# 788596
T -H A N D LE K N O B S
Q TY 2
P A R T# 38578
11
Step 2. Assembly
Step 3. Select Suitable Location
Moving and Handling
Note: Remove contents from packaging to begin
assembly.
Moving your pressure washer around
 Use the handles to manually move the pressure
washer.
 Push the pressure washer in front of you has you
walk.
 To turn, push down slightly on the handles and
pivot the pressure washer on its wheels.
Handle Assembly
1.) Attach handle to base using:
a. (2) Carriage Bolts (82233)
b. (2) T-Handle Knobs (38578)
2.) Mount hose hook onto the handle using:
a. (1) Hose Hook (788596)
b. (2) Nyloc Nut (777495)
3.) Insert the Nozzles into the Nozzle Holder
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.
Handle
Nozzles
WARNING: Lifting hazard
Nozzles Holder
The pressures 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.
Nyloc Nut
Hose Hook
Outdoor Use Only
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 and
ONLY run pressure washer OUTDOORS and at
least 6m (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 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
Carriage Bolts
T-Handle Knob
Base
Spray Gun Assembly
4.) Attach the Lance to Spray Gun
a.) Tighten spin-on coupler hand tight.
Note: The O-rings make the seal so there is no need to
tighten with a wrench.
Lance
Spin-On Coupler
12
applications. Never run the pressure washer
inside RVs or other vehicles, on boats, or on
pick-up truck beds.
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 2.1m (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.
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.
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
2.1m (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:
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 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.
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.
13
Operation
Follow Safety Rules for Operation
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.
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 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 4.5-6m (15-20 feet) of the
running pressure washer for an extended period of time.
Eye Protection. Wear appropriate 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.
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.
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 defects or other reproductive harm.
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 system quickly if needed.
Instruct all operators. The pressure washer's owner
must instruct all operators and potential renters in safe
14
Preparing for Operation
Never pull by hose. Do not move this machine by
pulling on the hose. Hose or connections could fail and
result in catastrophic high pressure release of fluid as
well as hose whipping.
Avoid sharp objects. Keep hose away from sharp
objects. Bursting hoses may cause injury.
No load bearing. Do not use the pump to support other
items of equipment that impose unacceptable loads on
the pump. Do not attempt to use this machine as a prop.
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.
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 dip stick).
2. If oil level is low, use the following:
Pump
Model
Comet AWD
NS15781520
Oil Type
Mobil 1 Synthetic Oil 15W50
3. Replace fill cap.
Check/Add Engine Oil
Prompt Emergency Response
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.)
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.
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.
Add Fuel
WARNING: Fuel Fire/Explosion Hazard
Petrol 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:
 petrol 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
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.
15
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.
- Do NOT overfill the petrol tank. Allow at least
13mm (1/2") of empty space below the fill neck to
allow for fuel expansion.
3) Replace petrol cap securely before starting engine.
4) Store extra petrol in a cool, dry place in a UL
approved tightly sealed container.
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 petrol tank at a
petrol 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 petrol 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.




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
Petrol 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.
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.
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 or
 defective petrol shut-off valve
Fill Engine Fuel Tank
Inspect Spray System
Check the petrol tank level. If needed, fill tank with
fresh unleaded petrol from a portable container:
1) Remove engine petrol cap.
2)
Always inspect spray system for damage and leaks
before each use. Do not start pressure washer until all
needed repairs have been completed.
Add petrol through the fill opening:
- Use only a UL-approved portable petrol container to
transfer the petrol to engine's tank.
16
WARNING: High Pressure Fluid
Injection Hazard
3.) The water supply garden hose must have an inside
diameter of at least 16mm (5/8”). If the hose is
more than 30m (100 ft.) long, the diameter must be
at least 19mm (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 115 psi
(8 bar).
5.) Always use a flexible rubber hose for your water
supply. Do not use rigid piping.
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.
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.
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 machine's
maximum rated pressure and temperature, or
component could rupture and cause serious personal
injury from escaping high pressure fluids.
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.
1. See "Component Identification" section of this
manual for location of the pressure washer's water
outlet.
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.
Coupler
Collar
Attach Garden Hose to Water Inlet
High Pressure Output
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 18.9
litre (5-gallon) bucket with your garden hose. The
bucket must fill faster than the times listed in the
table below.
Model
NS15781520
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.
Time to fill 18.9 litre bucket
72 seconds
17
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:
Red
Yellow
Green
White
Black-Low pressure
Spray
Angle
0
15
25
40
65
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.
Used For:
Highest Impact
Tough Stains/Stripping
General
Light Cleaning
Chemicals
NOTE: You must use the low pressure black nozzle for
spraying chemicals.
Prime the Water Supply
Attach Nozzle to Spray Gun
IMPORTANT!
Turn on water supply and squeeze the
trigger
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.
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.
Nozzle
Trigger
1. Make sure the engine is OFF and the hose line
depressurized.
2. To install the nozzle, pull the collar back and twist
the nozzle firmly into the coupler on the end of the
wand
18
Set Up for Chemical Spray (if desired)
Prepare for Chemical Spray (if planning to
use)
Acquire Cleaning Chemical
Use only approved pressure washer chemicals
designed for high-pressure use.
CAUTION: Non-approved Chemicals
Using the proper cleaning chemical for the application
can speed up cleaning jobs tremendously.
Non-approved chemicals can damage pressure
washer components (seals, wand, hoses, pump, etc.)
and be harmful to the environment and will void
warranty.
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 obviously alter the 15-to-1
dilution ratio and may cause pump damage.
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.
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.
Note: Adding accessories (IE: telescoping wands,
extra length of High pressure hose, Non factory
triggers) will effect chemical injector performance
or cause it not to operate at all.
19
7. Rinse with high-pressure spray as instructed below.
Start-Up Procedures
Start the Engine to Power the Pump.
Begin High Pressure Spray
WARNING: High Pressure Spraying
Safety
1. Make sure water supply is connected and primed.
CAUTION: Warranty Void
 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 (because they may
break)
o light fixtures, flowerbeds, mailboxes
o unsecured, lightweight objects
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 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”.
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.
20
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 30 cm (12") to 60 cm (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. To reduce the pressure, turn the unloader
knob counterclockwise. To return to maximum
pressure turn unloader knob clockwise.
Spray Gun Safety Lock
When not spraying, use the spray gun safety lock to
prevent accidental high pressure discharge.
Spray Gun
Safety Lock
10. Always turn OFF the engine and activate spray gun
trigger to relieve system pressure when:
 the sprayer is unattended
 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
high-pressure spray.
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.
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.
U nloader
Model#
NS15781520
U nloader
9. If temporarily interrupting spraying, rotate trigger
safety latch downward to the locked position to
guard against accidental trigger release.
U nloader
1.
2.
3.
4.
5.
6.
7.
8.
Turn engine OFF.
Turn water supply OFF.
Actuate spray gun trigger to relieve system pressure.
Remove garden hose.
Remove pressure hose.
Remove nozzle from spray gun.
Turn petrol line valve to the OFF position.
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.
21
Storage
When you are finished using the pressure washer, you
must prepare the sprayer for storage and store it in a
proper location.
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:
 30 cm (12") piece of garden hose or equivalent
 funnel
 approximately 175 ml (6 oz.) of RV antifreeze.
4. Attach the 30 cm (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.
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 pressure washer in
freezing conditions, follow the instructions for
preparing the sprayer for storage in freezing
conditions.
 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: Flammable Materials
RV Antifreeze
 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.
Funnel
Hose
Water Inlet
Prepare Engine for Long Term Storage
Prepare Pressure Washer for Freezing
Conditions
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 petrol 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
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.
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
22

Add fuel stabilizer to the petrol (following
manufacturer's instructions)
Fuel stabilizer steps:
a. Ensure petrol 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
Prepare the 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.
23
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 tire pressure
Perform engine maintenance
Change pump oil
Frequency
As needed
Each use
Each use
Each use
Each use
As specified in Engine Owner's manual
 After first 50 hours of use
 Every 3 months or 500 hours of use 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
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 Kincrome Tools & Equipment on
1300 657 528.
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.
24
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)
2)
Model#
NS15781520
Filter
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.
Check hoses, fittings, wand, trigger gun and
connections for signs of wear, cracks, looseness, or
leaks. Replace as required.
Check and clean the nozzle orifice.
Inspect Fuel System
Inspect the engine fuel system and check for leaks
before each use.
Filter
Do not start pressure washer until all
needed repairs
have been completed.
WARNING: Filter Disposal
Petrol 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
Filter
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, or
 defective petrol shut-off valve.
Good
Water dripping or
spraying, or localized
moisture
Exposed wire
mesh due to wear
Bad
Check Tire Pressure
Check and refill tire pressure before each use.
1) Remove air cap on tire.
2) Check tire pressure.
3) If needed, fill tire to 30 psi (2.07 bar). Do not
overinflate.
Replace air cap.
Bad
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.
1) Unscrew garden hose from water inlet (if
connected).
2) Unscrew inlet filter.
3) Remove filter screen.
4) Run water through filter screen to clean.
5) Reassemble
25
Perform Engine Maintenance
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.
-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)
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. Reference the “Specifications” section of this
manual to determine the oil type and quantity
needed for your pump model.
6. Replace oil fill cap.
Model#
NS15781520
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.
Contact Kincrome Tools & Equipment on
1300 657 528 for any
questions, problems, or parts orders.
O il Fill C ap
S ight G lass
O il D rain P lug
O il Fill C ap
NOTICE:
Dispose of used motor and pump oil in a manner that is
compatible with the environment and in accordance
with local, state, and federal
and regulations.
S ightlaws
G lass
O il D rain
P lug to your local
 Take used oil in a sealed
container
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.
26
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.
ENGINE WILL NOT START
Causes
Solutions
Low Oil Shutdown
Fill engine with the adequate amount of oil
Cold Engine
Choke engine to start
No Fuel
Add petrol to fuel tank - Make sure fuel shutoff valve is
open
Pressure build-up from initial use
Trigger spray gun to relieve pressure
Engine not turned ON
Place ON/OFF switch in the ON position
Spark plug wire not attached
Attach spark plug wire to spark plug
LOW/SURGING PRESSURE
Causes
Solutions
Insufficient water supply
Increase water flow - Check for kinked or pinched hose
Plugged inlet screen
Pull out and clean screen carefully
Need to use high pressure nozzle
Change to the green, yellow, white, or red nozzle
Plugged nozzle
Remove nozzle, check for blockage
Worn nozzle
Replace nozzle
Leak in high pressure line
Fix leaks
NO CHEMICAL INJECTION
Causes
Solutions
Need to use different nozzle
Change to the black nozzle
Back pressure from extra-long hose
Try shorter high pressure hose
Leak in clear chemical hose
Replace hose. Use hose clamps if necessary
Chemical strainer not submerged
Make sure strainer is completely submerged in solution
27
Parts Explosion- Model # NS15781520- Rev A
28
Parts List- Model #NS15781520- Rev A
REF#
PART#
DESCRIPTION
QTY
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
305200
788814
791308
38578
791309
22622
780455
779168
779165
788696
25450
788457
788797
788596
601091
788764
30825
795144
788447
781211
Wheel Retainer
Tire
Nozzle Quick Coupler
Knob
Lance
Lance Extension w/ QC
Spray Gun Quick Coupler
Spray Gun Trigger
Spray Gun
Nozzle Holder
Nozzle 5 Pack #4.0
Handle Weldment
Decal, Billboard
Hose hook
Honda GX 390 Engine
Engine Isolation Base
Rubber Mount
Decal
Frame
Comet AWD Pump
221222
777165
777915
38525
777914
2215
27
788742
NA
795143
Chemical Strainer
Braided Chemical Hose
Hose Quick Couple Nipple
50’ Pressure Hose
Hose Quick Coupler
Rubber Foot
Replacement O-ring,
Nozzle Holder
USA decal
2
2
1
2
1
1
1
1
1
1
1
1
1
1
1
1
4
1
1
1
1
3 ft.
1
1
1
2
29
5
1
Pump Assemblies- Model #NS15781520- Rev A
For NS15781520
30
Pump Assemblies Parts List- Model #NS15781520- Rev A
REF#
PART#
28
29
31
32
777915
4027
777340
777834
33
777165
34
39
DESCRIPTION
Quick Connect Outlet Plug
Inlet Filter Washer
¼” x ¼” Hose Barb Fitting
¼” Hose Clamp
¼” PVC Hose (sold by
foot)
CO0608003200 Easy Start Valve
30483
Inlet Fitting
31
QTY
1
1
1
2
1 ft.
1
1
Pump Exploded View- Comet AWD (Model NS15781520)
Part #
1
Code
Not Available
2
4
Not Available
CO1210041500
5
6
Qty
1
Part #
63
Code
CO1210004000
Description
O-Ring
Screw
O-Ring
8
6
64
65
CO1210004900
CO1802019700
O-Ring
Spring
1
1
Not Available
CO3604002800
Suct. /Del. Valve Seat
Suct. /Del. Valve
6
6
66
67
CO2409008600
CO1210044600
Check Valve
O-Ring
1
1
7
8
Not Available
CO1205003300
Spring
Suct. /Del. Valve Cage
6
6
68
69
CO3410031800
CO2409015400
Injector Body Kit
Check Valve Kit
1
1
9
10
CO1210015100
CO3202031100
O-Ring
Cap + O-Ring
6
6
70
71
Not Available
Not Available
Viton® O-Ring
Valve Seat
1
1
11
12
CO3609008800
CO1004001200
Screw
Crankcase Flange
3
1
73
74
CO3002065400
Not Available
Unloader Ball
Ring
1
1
CO0402036000
Transparent Cover
1
75
CO0009020500
Ring
1
14
CO0402032900
CO1210038600
Aluminum Cover
O-Ring
1
1
76
77
CO1210040500
CO1210040400
O-Ring
O-Ring
1
1
15
16
CO3019001100
CO0009027500
Outer Seeger / Snap Ring
Spacer
1
1
78
79
CO1210040700
Not Available
O-Ring
Bushing
1
1
17
CO0438006900
Ball Bearing
1
80
CO2409008800
Piston Rod
1
18
CO3200005100
Oil Dipstick
1
81
Not Available
O-Ring
1
13
Description
Brass Manifold
32
Qty
1
19
Not Available
Pump Crankcase
1
82
CO0009020500
Ring
1
20
Not Available
Packing + Ring
3
83
CO0009020700
Spring Spacer
1
23
CO1241005700
Packing
3
84
CO1802018200
Spring (Wire Ø3, 25)
1
24
CO0009037400
Packing Retainer
3
85
CO3622003000
Stop Adjustable Nut
1
25
CO1210033300
O-Ring
3
86
CO1227002200
Ring Nut
1
26
28
CO0019005800
CO2811008400
Oil Seal
Washer
3
1
87
88
CO 0204004600
CO1215040300
Bushing
Reg. Valve Kit + Seat
1
1
32
33
CO2409015100
CO3011001400
Piston
Gudgeon Pin
3
3
89
90
CO1817006400
CO1802018000
Pressure knob
Detergent Spring
1
1
34
36
CO0205005000
CO1210044100
Con. Rod Assembly
O-Ring
3
1
91
92
CO3003002600
Not Available
Detergent Ball
Detergent Coupling
1
1
37
38
CO3200000700
CO1210056100
Cap
O-Ring
1
1
93
102
CO2803043500
CO2803338000
Detergent Coupling Kit
Outlet Quick Coupler
1
1
39
40
Not Available
CO3609003200
Crankcase Cover
Screw
1
4
103
104
CO8102045000
CO1223010800
Water Filter
Wing Nut
1
1
41
44
CO3609003200
CO3607011900
Screw
Hexagonal Screw
4
4
105
106
CO2800051100
CO1215035400
Special Coupling
Thermal Valve
1
1
45
47
CO3016002300
CO0019010200
Flange
Oil Seal
1
1
107
108
CO1215044300
CO0608003200
Safety Valve
Easy Start Device
1
1
49
50
CO0437004500
CO0001064500
Roller Bearing
Eccentric Shaft
1
1
150
151
CO5025003000
CO5019068600
Valve Kit
Water Seal Kit
1
1
61
62
Not Available
Not Available
Suct. /Del. Valve Assy Kit
Injector Body
6
1
153
CO5019068700
Oil Seal Kit
1
33
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 Kincrome Tools &
Equipment at 1300 657 528 prior to having any service or warranty work performed, as some services performed by parties other than approved
service centers may void this warranty. This warranty is in lieu of any other warranty expressed or implied and Kincrome assumes no other
responsibility or liability outside that expressed within this warranty.
Limited Warranty
Kincrome 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:
Product Warranty
Item #
Warranty Period
NS15781520 2 years from date of purchase by user
Engine Warranty
Item #
Warranty Period
NS15781520 3 years from date of purchase by user
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 Kincrome.
Kincrome will not provide for replacement of complete products due to defective parts. Any costs incurred due to replacement or repair of items
outside of an 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, Kincrome 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, 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 Kincrome 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.
Consumer Guarantees: Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a
replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the
good repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. If you have any queries,
please contact Kincrome on 1300 657 528 for further information.
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 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: __________________________________________________________________
34
35
Engineered and Assembled by:
Northern Tool & Equipment Company, Inc.
Burnsville, MN 55306 USA
Distributed in Australia by:
Kincrome Tools & Equipment
Pty Ltd 3 Lakeview Drive,
Caribbean Business Park, Scoresby, Victoria, Australia 3179
1300 657 528
36
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