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Table of Contents

 

 

Important Safety Instructions 

Maintenance Instructions 

12-15

Specifications 

Moving and Handling Instructions  

17 

Machine Component 
Identification 

Long Term Storage 

17 

Installation Instructions 

5-8 

Troubleshooting 

18 

Operation Instructions 

9-11 

Parts Breakdowns 

19-21

Safety Features 

12 

Electrical Schematic 

22-24

 

 

Limited Warranty 

25 

 
 

Important Safety Instructions 

WARNING 

-Risk of injection or injury to persons - Do not direct discharge stream at persons. - Do not use 
hose if exterior damage is evident. 

 

-Risk of explosion.  Do not spray flammable liquids.  Do not operate in a flammable environment. 

CAUTION

  

-Risk of asphyxiation.  Exhaust fumes are deadly.  For outdoor use only.  Avoid inhaling exhaust 
fumes. 

 

-Risk of fire.  Do not add fuel when the product is operating or hot. 

 

-Gun kicks back, hold with both hands. 

 

-To reduce the risk of injury, read and understand operating instructions carefully before use. 

WARNING

 - When using this product basic precautions should always be followed, including the following: 

1.)  Read all the instructions before using the product. 
2.)  To reduce the risk of injury, close supervision is necessary when the product is used near children. Do 

not allow irresponsible use by children. Always stop the product and bleed pressures before leaving 
unattended, disconnecting hoses, or servicing the pump. 

3.)  Know how to stop the product and bleed pressures quickly.  Be thoroughly familiar with the controls. 
4.)  Stay alert - watch what you are doing. 
5.)  Do not operate the product when fatigued or under the influence of alcohol or drugs.  Never smoke while 

operating or fueling this machine. 

6.)  Keep operating area clear of all persons.   
7.)  Do not overreach or stand on unstable support.  Keep good footing and balance at all times. Wear 

footwear capable of maintaining a good grip on wet surfaces - Do not place the machine on soft or 
unstable ground. 

8.)  Follow the maintenance instructions specified in all manuals.  Do not run machine without sufficient 

lubrication or sufficient water to cool the pump. 

9.)  Wear safety glasses, gloves, face protection and appropriate clothing when operating the machine. 

10.) Do not operate this machine with broken or missing parts. - Never alter the manufacturer’s original 

design or deactivate any safety device on the machine. 

11.) Risk of exposure to dangerous chemicals.  Wear protective gloves when handling and cleaning with 

chemicals.  Follow the chemical manufacturer’s directions. Understand all safety hazards and first aid for 
all chemicals being used. Check whether dangerous chemicals have been used and take any 
precautions that may have been recommended by the supplier of these chemicals when cleaning filters.  
Do not pump highly abrasive fluids or use with incompatible chemicals or solvents. 

12.)  Know the pressure and temperature limits of your machine.  Be sure all high pressure accessories meet 

or exceed your machine’s limits. Do not set the pressure relief valve above the machine’s limit. 

13.) Do not move this machine by pulling on the hose. 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. 

14.)  To reduce risk of injury, do not secure the spray gun open. Your spray gun is equipped with a built-in 

trigger safety latch to guard against accidental trigger release and potentially dangerous high pressure 
spray.  Rotate the safety latch to the locked position when not spraying. 

15.)  Do not clean this machine with its own spray.  Cleaning should be done with a damp sponge with the 

engine OFF. 

16.)  NEVER attempt to immediately run or re-light the burner if it doesn’t ignite the first time. Unburned oil or 

gas may have accumulated causing potential explosion or fire hazard. 

17.)  Always make sure all switches and controls are in the OFF position prior to starting the engine. 

 

SAVE THESE INSTRUCTIONS 

Summary of Contents for M157310K.1

Page 1: ...oil Fill before starting Use SAE 10W 30 motor oil Pump Oil Pump is shipped with oil Remove shipping tape and check pump oil level before starting Use SAE 30 Non detergent pump oil item 4043 or Cat Pump Oil item 22158 for oil changes Water Make sure your water flow is 20 higher than the pressure washer s flow rate Make sure your water is clean and particle free Storage Do not allow water to freeze ...

Page 2: ... place the machine on soft or unstable ground 8 Follow the maintenance instructions specified in all manuals Do not run machine without sufficient lubrication or sufficient water to cool the pump 9 Wear safety glasses gloves face protection and appropriate clothing when operating the machine 10 Do not operate this machine with broken or missing parts Never alter the manufacturer s original design ...

Page 3: ... 75 psi Engine Horsepower 13 hp BTU Output 353 700 BTU Temperature Rise 140 F Maximum Temperature 250 F Approved Fuels 1 or 2 Diesel Kerosene Fuel Oil Fuel Capacity 8 5 Gal Gasoline Capacity 8 5 Gal Discharge Hose 3 8 X 50 Dimensions Length 64 Width 33 Height 44 Weight shipping 655 lbs Weight dry 557 lbs Weight fueled 710 lbs ...

Page 4: ...hine Component Identification Ref Description Ref Description 1 Exhaust Vent 7 Fuel Cap 2 Pump 8 Fuel Tank 3 Battery Box 9 Control Panel 4 Fuel Filter Water Separator 10 Engine 5 Gas Cap 11 Burner 6 Gas Tank ...

Page 5: ...5 Installation Instructions I Unpack Your pressure washer is shipped on one pallet Separate and identify the components and use the assembly instructions in this manual for assembly ...

Page 6: ...6 Hardware Bag 6X Nozzle 4X Wheel Retainer 6X Grommet 4Ft Braided Hose 1X Strainer Owner s Manual Honda Manual 4X 5 16 X 3 4 Flange Bolt 4X 5 16 Flange Nut 1X Chemical Injector ...

Page 7: ... for the battery and will accept a standard lawn tractor size battery Group U1 7 The engine requires a 12 volt battery with a minimum rating of 18 Ah Amp hour When installing a battery always connect the red colored positive or cable first When disconnecting a battery always remove the black colored negative or cable first LIFT BACK OF UNIT BY HANDLES TO INSTALL REAR WHEELS THEN LIFT FRONT OF UNIT...

Page 8: ... solvents etc may be present VIII Oil Burner Burner Air Adjustment The oil burner is preset and performance tested at the factory elevation 1100 feet Different altitudes may require a one time initial burner correction 1 Turn the engine and heat switches ON Refer to Operation for details Have someone operate the spray gun so the burner fires 2 Loosen the locking screw and close the air band until ...

Page 9: ...faster C 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 D Never use a reservoir tank as a water source This pressure washer is designed for a pressurized water source such as a city water faucet Sucking water out of a tank may cause pump cavitation and damage to your pump However the inlet pressure of...

Page 10: ... aid for all chemicals NOTE Your pressure washer is equipped with a low pressure chemical injector The proper chemical used for the proper application can speed up cleaning jobs tremendously A Snap the quick couple chemical injector onto the high pressure outlet and high pressure hose and submerge the suction strainer into the chemical solution B You need to use the low pressure nozzle to spray ch...

Page 11: ...es The pressure may damage the surface if the nozzle is too close IMPORTANT Your spray gun is equipped with a built in trigger safety latch to guard against accidental trigger actuation and potentially dangerous high pressure spray Rotate the safety latch to the locked position when not spraying A Hold the lance with two hands have a sturdy stance B Point lance at dirty surface and squeeze trigger...

Page 12: ...r pressure washer is no exception At times a North Star pressure washer may be inoperable because repairs are required North Star Customer Service 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 1 Have someone on staff who is trained in the operation of the pressure washer and is capable o...

Page 13: ...er or skin to check for leaks Escaping fluid under pressure has sufficient force to penetrate the skin causing serious injury Do not operate the pressure washer if the hose is cracked worn or leaking A Check all hoses for leaks B Check all hoses for worn areas Changing The Pump Oil Change oil after first 40 hours then every 3 months or 500 hours 1 Remove oil drain plug 2 Drain pump oil 3 Replace o...

Page 14: ...aning solution where it is not harmful to animals or the environment 8 Flush with fresh water and clean the inlet strainer when finished Coil Desooting Poor grades of fuel oil or inadequate combustion air will cause heavy soot build up on the outside surface of the heating coil These deposits will insulate the coil This will restrict the air flow through the coil further aggravating the soot build...

Page 15: ...e to disconnect the fuel lines or the electric cords 2 Pull the burner out from underneath the heat exchanger Tip the burner away from the machine so the electrodes are visible 3 Clean off carbon deposits which may have accumulated on the tips of the electrodes 4 Reset the spacing as shown below 5 Reinstall burner using the four nuts and tighten accordingly 1 16 1 8 5 16 Electrodes ...

Page 16: ...ending on model 3 Unthread the removable outlet fitting with the swivel still attached from the flow switch assembly 4 Remove the shuttle 5 Clean the inside of the brass flow switch body and the shuttle with water and a soft brush 6 Insert the shuttle into the brass flow switch in the orientation shown Note Aligning the male tabs on the shuttle to the female guides inside the brass flow switch bod...

Page 17: ...re you store the pressure washer make sure you do the following 1 If adding stabilizer run pressure washer with high pressure hose for five minutes 2 Disconnect the battery and store it indoors 3 Disconnect high pressure and garden hose Winter Storage Items needed 12 piece of garden hose or equivalent funnel and RV antifreeze approximately 6 oz 1 Follow the storage instructions listed above 2 Disc...

Page 18: ...nnections between unloader and gun for leaks Tighten loose components and replace damaged components Gun leaking internally Replace spray gun Smoke From Heat Exchanger Causes Solutions Air band not adjusted properly Adjust the air band until the burner burns cleanly See Installation Instructions Poor quality fuel Use kerosene for the cleanest burn Water Not Heating Sufficiently Causes Solutions Sc...

Page 19: ...Parts Explosion 157310 Rev K 1 19 ...

Page 20: ...Cat Pump 1 42 35918 Thermal Protector 1 43 35169 Inlet Filter 1 44 2264 777119 Hose Hose Clamp 15 2 ITEM PART DESCRIPTION QTY 45 777411 3 8 Tee Forged 1 46 784621 Flow Switch 8 0 GPM 8000 PSI 1 47 777800 Unloader 1 48 2294 NPT x Hose Barb 1 49 30825 1 0 Iso Mount CR50 4 50 778219 ISO Mount Plate 1 51 778228 ISO Support Bar 1 52 777232 Rear Brake 1 53 30747 Handle Brake Grip 4 54 778295 Turf Tire 4...

Page 21: ...21 ...

Page 22: ...Electrical Wiring Diagram Rev K 1 22 ...

Page 23: ...Limited Warranty 23 ...

Page 24: ...Limited Warranty 24 ...

Page 25: ...ch as engines are guaranteed by their manufacturer and can be serviced at factory authorized locations near you 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 NorthStar can supply you with the service center location in your area This warranty specifically excludes the following fai...

Page 26: ...26 Manufactured by Northern Tool Equipment Co 2800 SouthCross Drive West P O Box 1499 Burnsville MN 55337 0499 ...

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