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157205

Belt Tension 

Some general rules of belt tension are: 
1.)  Ideal  tension  is  the  lowest  tension  without  belt 

slippage. 

2.) Over tightening decreases belt and bearing life. 
3.) Keep belts clean and free of foreign material that 

may cause slippage. 

4.) Tighten belts when slipping. 
5.)  Never  apply  belt  dressing.  It  will  damage  the 

belts and cause early failure. 

 
Tightening  belts 
1.) Loosen pump mount bolts (4 places). 
2.) Tighten tension bolt. 
3.) Re-tighten pump mount bolts. 

 Pump
 Bolts (4x)

 Tension
  Bolt

Changing The Pump Oil 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

157207 

 

*Change oil after first 40 hours, then every 3 months  

     or 500 hours. 

 

1.) Remove oil drain plug 
2.) Drain pump oil 
3.) Replace oil drain plug 
4.) Fill pump with pump oil.

 

5.) Fill half way up sight glass. 

 
 
 
 
 

 
 

 
 
 

 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 

Quantities Of Fluid 

Item # 

Pump 

Type of Fluid 

Qty. (oz./L) 

157205 

AR RKA 45G40  SAE 30** 

15.0oz (.44L) 

157207 

General T9281 

SAE 30** 

40.60oz (1.2L) 

 

**SAE Non-Detergent Oil (Item #4043) 

 
 

Sight Glass 

Oil Drain 

Oil Fill 

 

Oil Drain 

Oil Fill 

Sight Glass 

Summary of Contents for M157206S

Page 1: ...ting Use SAE 10W 30 motor oil Pump Oil Pump is shipped with oil Remove the red shipping plug and install vented dipstick Use SAE 30 Non Detergent oil item 4043 for oil changes Water Make sure your wat...

Page 2: ...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 specifi...

Page 3: ...Shutoff Valve 4 Battery Box T M 2 Attach pressure hose 4 Turn water supply ON 3 Attach gun and lance COMME RCIAL purge air from pump 5 Squeeze trigger to 7 Start engine 6 Insert nozzle POWER ED BY St...

Page 4: ...s I Unpack Separate and identify the components Use the assembly instructions in this manual for assembly FIG02225 MAIN UNIT HOSE SPRAY GUN LANCE NOZZLE HOLDER FUEL TANK CAP MAY ALREADY BE INSTALLED W...

Page 5: ...5 Hardware Bag...

Page 6: ...1 4L 157205 AR RKA 45G40 SAE 30 15 0oz 44L 157207 General T9281 SAE 30 40 60oz 1 2L SAE Non Detergent Item 4043 V Battery Warning Sulfuric acid is a corrosive poison Avoid contact with skin eyes or c...

Page 7: ...is 20 over the rated flow of your pump Use a stopwatch to time how long it takes to fill a 5 gallon bucket with your garden hose Example If the rated flow is 3gpm Then required flow 3 x 1 20 3 6gpm 5g...

Page 8: ...ulated for pressure washers Follow the chemical manufacturer s recommendations Understand all safety precautions and first aid for all chemicals NOTE Your pressure washer is equipped with a low pressu...

Page 9: ...ght parts should be clamped down G The pressure washer is set and locked to the maximum rated pressure when it leaves the factory An easy way to reduce the water pressure is to reduce the engine speed...

Page 10: ...olts Cleaning The Inlet Filter WARNING Check whether dangerous chemicals have been used and take precautions when handling filters 157205 157207 A Unscrew inlet filter cap B Remove Inlet filter mesh C...

Page 11: ...elts 1 Loosen pump mount bolts 4 places 2 Tighten tension bolt 3 Re tighten pump mount bolts Pump Bolts 4x Tension Bolt Changing The Pump Oil 157207 Change oil after first 40 hours then every 3 months...

Page 12: ...tabilizer run pressure washer with high pressure hose for five minutes 3 Shut down pressure washer by turning engine start switch OFF 4 Disconnect high pressure and garden hose 5 Remove spark plug tur...

Page 13: ...ed or pinched hose Plugged inlet screen Pull out and clean screen carefully Need to use high pressure nozzle Change to the green nozzle Plugged nozzle Remove nozzle check for blockage Worn nozzle Repl...

Page 14: ...5 Gallon 1 All 53 Next pg Pump 1 All 11 33321 Fuel Tank Cap 1 All 54 777414 Tension Plate 1 157207 14 777420 Gun Handle 5000 psi 1 157207 56 25455 Nozzle 5 pack 4 5 1 All 15 780396 Instruction Decal 1...

Page 15: ...0 hose clamp 2 157207 6 35918 Thermal protector 1 4 1 157207 19 777340 1 4 MNPT X 1 4 HB 1 157207 8 777915 3 8 MNPT QC nipple 1 157205 20 777639 Street tee 1 157207 777395 3 8 FNPT QC nipple SS 157207...

Page 16: ...16 This page has intentionally been left blank...

Page 17: ...h 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...

Page 18: ...18 Manufactured by Northern Tool Equipment Co 2800 SouthCross Drive West P O Box 1499 Burnsville MN 55337 0499...

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