North Star M157477A ユーザーズマニュアル

 

14

 
Maintenance Mode 
Before performing any maintenance on the pressure washer, it must be placed in maintenance mode. 

1.) Turn off engine. 
2.) Turn off water supply. 
3.) Squeeze trigger to relieve system pressure. 
4.) Unplug spark plug wire from spark plug. (see engine owner’s manual) 

 

Inlet Filter 

Each Use 

Visually inspect and clean inlet filter with clear water. 

 

Pressure Hose 

 

Each Use 

Visually inspect pressure hose and hose couplings. Replace 
hose if any of the following is evident:  
hose coupling is damaged, wire mesh is exposed or damaged, 
hose is permanently kinked or flattened, outer hose cover is 
blistered or loose. 

Bolts 

Each Use 

Tighten any loose bolts. 

Engine Oil 

See engine 

manual 

See engine manual for oil change intervals, see Maintenance 
section of this manual for oil change instructions. 

Pump Oil 

Never 

The pump’s crankcase is sealed; oil changes are not required. 

 
Cleaning/Replacing the Nozzle Orifice 
1.) Place pressure washer in 

maintenance mode. (see above) 

2.) Insert a 2mm hex wrench into orifice 

and turn counter-clockwise to remove 
orifice from nozzle. 
-  To clean orifice, remove any debris 

and soak in descaling solution to 
remove hard water deposits. 

-  To replace orifice, order p/n 

PD38780 from NorthStar Customer 
Service, 1-800-270-0810 

3.) Use 2mm hex wrench and turn 

clockwise to reinstall orifice.