North Star 157596 User Manual
HOT / COLD WATER PRESSURE WASHER
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Item 157596
P.O. Box 1499
Burnsville, MN 55337-0499
1-800-270-0810
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NORTH STAR -
Pressure Washer
HOT- COLD
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Congratulations on your purchase of the
Your pressure washer is made of high quality components to ensure the top performance you
demand. Take the time to read this entire manual so you better understand the machine, how
to operate it, the maintenance required and the safety precautions. You will find the assembly,
operating, maintenance and troubleshooting instructions included. Be sure everyone who
operates and/or maintains the equipment has read and understands this manual, the engine
operations and the safety precautions. The time you take now will prolong the life of your
machine and prepare you for its safe operation. Enjoy the exceptional performance of your
Pressure Washer, the industry leader!
This symbol means CAUTION, WARNING OR DANGER!
Read and understand the instruction because it has to do with safety.
!
Failure to comply with the instruction may result in personal
injury or damage to the product.
If an injury ever occurs, seek medical attention immediately.
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157596 Pressure Washer!
TABLE OF CONTENTS
SAFETY INSTRUCTIONS................................................................................................ 3
Unpacking ..................................................................................................................................... 4
ELECTRICAL REQUIREMENTS .................................................................................... 5
INSTALLATION INSTRUCTIONS .................................................................................. 6
PRE-OPERATION CHECK ............................................................................................... 6
OPERATING INSTRUCTIONS ........................................................................................ 7
Starting the Pressure Washer ......................................................................................................... 7
Cold Water Operation .................................................................................................................... 7
Hot Water Operation...................................................................................................................... 8
Stopping the Pressure Washer ....................................................................................................... 9
Using the Detergent Injector ......................................................................................................... 9
MAINTENANCE ............................................................................................................. 10
TROUBLESHOOTING.................................................................................................... 11
PARTS ASSEMBLY AND IDENTIFICATION .......................................................... 12-20
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SAFETY INSTRUCTIONS
Read and understand these instructions because they have to do with
safety. Pay particular attention to the safety symbol throughout this
manual. Failure to comply with these instructions may result in personal
!
ELECTRICAL SAFETY
1. Properly ground this unit. Failure to ensure proper grounding can cause serious personal injury.
Never use a two-prong adapter on the three-prong electrical plug that is installed.
2. Be certain all switches are “OFF” before plugging the unit into a compatible 120 volt power
source.
3. Always turn off and unplug the unit from the power source if leaving unattended. Never leave
unit unattended while running.
4. Never allow an electrical cord or connections to lay in water, it can cause a serious/fatal shock.
5. Do not use this unit on or near any electrical installations, including electrical outlets, light bulbs,
fuse boxes or transformers. Severe electrical shock can occur.
injury or product damage.
6. Unplug the unit from power source before attempting any repairs. Electrical repairs are best
suited to a licensed electrician.
7. Follow all local, state and federal electrical installation codes.
VENTILATION AND FIRE SAFETY
8. Use only No. 1 or No. 2 Diesel, to fill the fuel tank. Never use kerosene, gasoline, crankcase
drainings or oil containing gasoline/solvents, these can ruin your pressure washer.
9. Fill the fuel tank slowly and only when the unit is COOL.
10. Never operate the unit near dust, gases, flammable vapors or other ignitable materials.
11. Always operate the pressure washer with the hood cover in place.
12. Allow the unit to cool down after stopping the pressure washer before leaving it unattended.
See cool down procedure in STOPPING THE PRESSURE WASHER section.
13. Consult a qualified heating contractor for permanent installation. Follow all local, state and
federal codes.
14. Always be sure there is adequate oxygen and ventilation during indoor use. Carbon monoxide
gas is odorless and colorless, it can cause serious illness end even death. Vent all burner exhaust
outside the building. Poorly ventilated areas cause bad combustion, motor overheating and
serious danger.
15. Never alter or modify the unit or its safety features. Be sure all components can handle the high
pressure this unit generates.
16. Be sure all connections are secure before operating the unit. Do not over tighten pressure washer
adjustments; excess pressure, irregular unloader operation and wear may occur.
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GENERAL SAFETY
17. Always wear safety glasses or goggles when operating the unit.
18. Always point the wand away from people and animals. High pressure streams will penetrate the
skin. Seek medical attention immediately if fluid penetrates skin. Do not treat as a simple cut.
19. Always release system pressure after shutting off the pressure washer by squeezing the wand
trigger. Never leave the unit unattended with system still pressurized.
20. High pressure spray will shatter fragile materials. Never spray directly at glass or other breakable
objects.
21. Be firmly braced before squeezing the wand trigger “on”. High pressure stream may cause loss
of balance.
22. Never operate the pressure wand in high levels unless the proper safety equipment to prevent
fails is in place.
23. Inspect pressure hose daily for signs of wear. Never lay hose on the heat coil or drag over
abrasive surfaces.
Replace hose and other components promptly when leaks or wear is discovered. Never place
your hand over a pressurized leak.
24. Repair any leaks before operating the unit. Any fuel oil, pump oil or water leaks should be
serviced at your nearest Northern store or call customer service at 1-800-222-5381.
25. Use only Northern parts for replacements in your pressure washer. Other brand components may
cause hazardous operating conditions and will void warranty.
DETERGENT SAFETY
26. Do not alter the soap injecting system on the unit or use it in any manner not described in
this manual.
27. Always wear safety goggles when operating the unit and other safety attire recommended by
the detergent manufacturer. Protective clothing like rubber gloves, rubber suits and respirators
may by necessary.
28. Never use acid type cleaners or other highly corrosive detergents with this pressure washer.
29. Know your detergents! Follow all appropriate instructions for preparation, use, safety and
transportation of the detergent. Keep all detergents away from children. In an emergency, tell the
physician exactly what detergent you are using.
UNPACKING
Closely inspect all the contents of the
Damaged components? Contact the freight company that delivered the unit and file a claim.
Missing components? Contact our Customer Service department at 1-800-222-5381.
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157596 carton.
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ELECTRICAL REQUIREMENTS
“The supply and internal wiring of portable high pressure spray washing machines shall have ground-fault-circuitinterpreter (GFCI) which is designed to protect people from line-ground shock hazards”, National Electric Code
(NEC) 1987, 422, 8 (d) (3).
- All equipment and power cords connected down-line from the GFCI are protected.
- GFCI does not protect against line-to-line or line-to-neutral faults.
- GFCI does not protect against short circuits or overloads. Use a fuse or circuit breaker to guard against
these occurrences.
Northern recommends that all electrical service be performed by a licensed electrician.
- All electrical connections must be made according to local, state, and federal codes to maintain a valid
warranty.
- Connect the cord to a circuit that is wired for the 120 volts shown on the identification plate of the unit and
properly electrically ground the connection.
GROUNDING INSTRUCTIONS
This pressure washer must be grounded. Grounding provides a path of least resistance for electric current to reduce
the risk of shock if the unit should malfunction or breakdown. For your safety, plug the cord equipped with an
equipment-grounding conductor and a grounding plug into an appropriate outlet. The outlet should be properly
installed and grounded according to local electrical codes and ordinances.
GROUND-FAULT-CIRCUIT-INTERRUPTER
A GFCI is built into the plug of the pressure washer power supply cord. This GFCI provides additional protection
from electrical shock. Use only the identical replacement parts that include GFCI protection when replacing the
plug or power cord.
EXTENSION CORDS
Only use outdoor approved, 3-wire extension cords with 3-prong grounding-type plugs and 3-pole cord connectors
that accept the plug from the unit. Outdoor cords are identified by: “Acceptable for outdoor appliances; store
indoors while not in use”. Extension cord must have an electrical rating not less than the rating of the product.
Do not use a damaged extension cord or abuse the cord by yanking. Keep cord away from heat sources and
sharp objects. Always disconnect the extension cord from the power supply before disconnecting the unit from
the extension cord,
Improper connection of the equipment-grounding conductor can result
in a risk of electrocution. Check with a licensed electrician if you doubt
whether an outlet is properly grounded. Do not modify the product
!
plug, install a proper outlet with a licensed electrician. Reduce the risk
of electrocution, keep all connections dry and off the ground. Do not
touch with wet hands.
VENTILATION REQUIREMENTS
Permanent installation in an enclosed area or indoors should be performed by a qualified contractor. The burner
exhaust must be stacked to the outside atmosphere and a barometric draft regulator is required as well.
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INSTALLATION INSTRUCTIONS
If installing the
- Operate the unit on a level surface to ensure proper lubrification to the water pump.
- Be certain the ambient temperature of the environment does not exceed 100°F. This ensures adequate air
supply for the burner,
- Do not expose the unit to rain, snow or freezing temperatures.
- Do not install where dust, vapors or combustible materials will be present.
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157596 indoors or in an enclosed area, observe the following guidelines:
PRE-OPERATION CHECK
CLOTHING
Proper clothing is essential for your safety. Use whatever is necessary to protect your eyes, ears, feet and skin.
Additional safely accessories (like a respiratory mask) may be required when using detergents with this washer.
PUMP
If oil is needed, fill with SAE 80-90 non-detergent oil AGIP ROTRA MULTI THT or correspondant products:
• U.T.T.O. Lubricants (Universal Tractor Transmission Oil)
• SHELL DONAX TD
• MOBIL MOBILFLUID 422
• FORD M2C-86 B - M2C-134B/C
• JOHN DEERE J20A
• MASSEY - FERGUSON M-1135
• ESSO TORQUE FLUID 62
• API GL-4
Quantity: 0,26 lb (do not overfill)
WATER SUPPLY
1. Connect the water supply to the 3/4” female garden hose swivel on the water inlet port of the unit.
Connect the other end of the hose to the pressurized water supply. The supply hose should have a
3/4” inside diameter (ID) and be no longer than 50 feet.
2. The water supply pressure must be a minimum of 20 pounds per square inch (PSI) and a
maximum of 125 PSI. The flow rate must be at least 3 gallons per minute (GPM).
3. Use a water softener if there is high mineral content in the water of your area. High mineral
content causes excessive scale build-up in the coil/heat exchanger.
4. Un-roll the hose reel and then connect one end of the high pressure discharge hose to the watergun assembly.
Be sure all connections are securely tightened.
Sudden release of high pressure streams can cause serious injury.
!
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OPERATING INSTRUCTIONS
STARTING THE PRESSURE WASHER
BEFORE STARTING THE PRESSURE WASHER
1. Read all safety instructions throughout this manual.
2. Be sure the motor switch is in the “OFF” position, red button pushed.
3. Ensure outlet is the proper voltage (120 volts).
4. Insert the male power plug into a grounded AC outlet.
5. Press and release the “RESET” button on the GFCI power cord.
6. Press “RESET” each time after plugging the GFCI power cord into a power source.
COLD WATER OPERATION
1. After following all preparation instructions, turn the water supply on.
2. Turn the unit on by pushing the pump switch on the control panel. Once the unit starts, squeeze
the trigger gun “ON” for 2 minutes to purge all air and mineral deposits from the system. This
operation is to be done without lance terminal end.
3. Turn the pump switch to OFF position, release the trigger gun and lock in the “OFF” position.
Fit the lance terminal end. To ensure you are in the high pressure mode, turn the nozzle holder
to the right.
4. Your
5. Every time you release tre trigger-gun, the machine automatically stops thanks to TOTAL STOP
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“ON” by pushing the pump switch on the control panel. Squeeze the trigger-gun to spray a high
pressure stream and release the trigger to stop the stream.
System. The machine will re-start automatically once you press again the trigger-gun.
157596 is now ready to be used as a cold water pressure washer. Turn the unit
In case that TOTAL STOP is not working correctly, please note not
allow the unit to operate in bypass mode (with trigger released in the
“OFF” position) for more than 3 minutes.
!
Premature failure of pump packing may occur if left in bypass
mode for longer than 3 minutes.
Never look directly into the nozzle unless it is disconnected from the
spray wand.
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