Ryobi Outdoor 3000 PSI 用户手册

17

See Figure 20.
n 

Shut off the engine.

n 

�Place a container under the pressure washer.

n 

Remove the oil plug and drain the old oil.

 

NOTE: Drain the oil while the engine is still warm but not 
hot. Warm oil will drain quickly and more completely.

n 

Replace the oil plug.

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Replace the oil with new, clean oil. This engine will hold 
20 oz. or .6 liters of oil.

See Figure 21.
n 

Clean off carbon deposits on the spark plug electrode 
using a plug cleaner or wire brush.

n 

Check electrode gap. The gap should be .6 mm-.7 mm. 
Adjust the gap, if necessary, by carefully bending the side 
electrode. 

  (Recommended spark plug: NGK BR-6HS; CHAMPION 

RL86C.)

See Figure 22.
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�Inspect fuel cup for water and dirt.

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�If dirt or water is present, 

CLOSE THE FUEL VALVE and 

remove the fuel cup. Using a wrench, grasp the square 
on the bottom of the fuel cup and turn clockwise.

n 

�After  removing  dirt  and  water,  wash  the  fuel  cup  with 
kerosene or gasoline. Reinstall securely to prevent leak-
age.

See Figure 23.
Excessive  pump  pressure  (a  pulsing  sensation  felt  while 
squeezing  the  trigger)  may  be  the  result  of  a  clogged  or 
dirty nozzle.
n 

�Turn  off  the  pressure  washer  and  shut  off  the  water 
supply. Pull trigger to release water pressure.

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�Remove the nozzle from the spray wand.

 

NOTE: Never point the spray wand at your face.

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�Using the nozzle cleaning tool provided with this prod-
uct, free any foreign materials clogging or restricting the 
nozzle.

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�Using a garden hose, flush debris out of nozzle by back 
flushing (running the water through the nozzle backwards 
or from the outside to the inside).

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�Reinstall the nozzle then reconnect the nozzle to the spray 
wand.

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�Turn on the water supply and start the engine.

Replace the fuel hose every 1,000 hours of use. If fuel leaks 
from fuel hose, replace the hose immediately.

Fig. 21

Fig. 22

Fig. 23

We recommend having the pump oil changed every 100 hours 
to ensure longer life of the machine. This service should be 
performed by an authorized service center.