North Star 157303 Installation, Operation And Maintenance Manual Download Page 2

 

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Table of Contents

 

Important Safety Instructions 

Maintenance Instructions 

10-11 

Grounding Instructions 

Long Term Storage 

11 

Machine Component Identification 

Troubleshooting 

12 

Installation Instructions 

4-7 

Parts Breakdowns 

12-17 

Operating Instructions 

8-10 

Wiring Diagram 

18 

 
 

Important Safety Instructions 

 
WARNING 

-Risk of Injection or Injury to Persons - Do Not Direct Discharge Stream at Persons. - Do not use a hose if 
exterior damage is evident. 

 

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

CAUTION

  

-Gun kicks back.  Hold with both hands. 

 

-To reduce the risk of injury, read 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 

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 electrical 

power turned OFF. 

 

Grounding Instructions 

 
This product must be connected to a grounded, metal, permanent wiring system; or an equipment-grounding conductor must be run 
with the circuit conductors and connected to the equipment-grounding terminal or lead on the product. 
 
 

SAVE THESE INSTRUCTIONS

 

Summary of Contents for 157303

Page 1: ...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...

Page 2: ...ine 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...

Page 3: ...3 Machine Component Identification 157303 157304 Ref Description Ref Description 1 Inlet Filter 4 Pump 2 On Off Switch 5 Unloader 3 High Pressure Outlet 6 Motor fig02288...

Page 4: ...4 Installation Instructions I Unpack Separate and identify all components Use the assembly instructions in this manual for assembly...

Page 5: ...5 HARDWARE BAG Separate and identify all components Use the assembly instructions in this manual for assembly...

Page 6: ...for 157304 Install on quick connect outlet on 157303 4 Connect the other end of the pressure hose to the spray gun as shown 5 Connect the lance extension to the spray gun and insert the proper nozzle...

Page 7: ...A 157304 is shown in the following steps the 157303 gets wired the exact same way Step 1 Using a 3 8 wrench remove the roof and the top of the electrical housing Front panel not shown for clairity Ste...

Page 8: ...nds or 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...

Page 9: ...pressure washer chemicals or chemicals specifically formulated for pressure washers Follow the chemical manufacturer s recommendations Understand all safety precautions and first aid for all chemicals...

Page 10: ...all preventative maintenance procedures as outlined in the provided manuals 2 Keep a stock of recommended service parts for maintenance and minor repairs Recommended Service Parts List Following is a...

Page 11: ...move it outdoors before starting the motor Follow these instructions to prevent the pump from freezing during storage Storage Before you store the pressure washer make sure you do the following 1 Unpl...

Page 12: ...een unloader and gun Check all connections between unloader and gun for leaks Tighten loose components and replace damaged components Gun leaking internally Replace spray gun Poor Or No Detergent Supp...

Page 13: ...13 RevE 157304 Parts Breakdown...

Page 14: ...cal 1 52 35169 Inlet filter 1 19 2212 Chemical strainer 1 53 305267 Strain relief nut 1 20 777165 Chemical hose 48 54 777645 F npt x hose barb 1 21 31934 Chemical injector 1 55 17141 Hose clamp 1 22 7...

Page 15: ...u t 1 T u r n 2 T u r n 3 R e li e v e pr e s s u r e s p r a y 4 5 P r ot e c t fr o m S t a r t 1 C o n n e c t 2 C o n n e c t 3 C o n n e c t 4 T u r n 5 S p r a y w at e r 6 T u r n 7 157303 Part...

Page 16: ...F NPT x hose barb 1 11 778214 Top electrical housing 1 39 17141 Hose clamp 1 14 33556 Terminal block decal 1 40 2264 1 2 black inlet hose 24 15 34200 Terminal block 1 41 2263 1 2 hose clamp 2 16 7781...

Page 17: ...End 1 121 13978 O Ring Seal Case 3 30 48224 Cover Bearing Blind 1 127 43319 V Packing 6 31 828710 Protector Oil Cap 1 128 46618 Adapter Male 3 32 46798 Cap Oil Filler Domed 1 139 22179 Plug Inlet 1 2...

Page 18: ...18 157303 Pump Breakdown...

Page 19: ...19 Wiring Diagram 157304 L2 L1 157303 L2 L1...

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