V 4.0
4.2 GPM @ 4,000 PSI Gas Pressure Washer
8643926
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1. Shut off the engine and turn off the water supply. Then release the pressure in
the pump system by aiming the spray gun in a safe direction and squeezing
the trigger.
2. Remove the spray nozzle from end of spray gun wand.
3. Use a small paper clip to free any foreign
material clogging or restricting the spray
nozzle (Fig. 18-1).
4. Disconnect the spray gun wand and check for
foreign material that may clog the tube (Fig. 19).
5. Remove additional debris by back flushing
water through the spray gun wand using a garden hose.
6. Reinstall spray nozzle into spray gun wand.
7. Reconnect spray gun wand to spray gun.
8. Make sure the garden hose is connected to the pump’s water inlet. Check that
high pressure hose is connected to spray gun and pump. Turn on the water.
9. Start engine following instructions How to Start Your Pressure Washer
10. Test the pressure washer with each of the five spray nozzles to ensure they are
all unclogged.
CHANGING PUMP OIL
Change the pump oil after the first 50 hours of operation. Then change the oil every
200 hours or 3 months, whichever occurs first.
When changing pump oil, use only high quality non-detergent 30 weight oil. Use no
special additives.
Change pump oil as follows:
1. Clean area around the brass oil drain plug at the bottom of the pump.
2. Remove oil drain plug. Drain oil completely into an approved container.
3. When oil has completely drained, install oil drain plug and tighten firmly.
4. Clean area around pump oil dipstick. Remove dipstick and fill pump with
recommended oil to full mark on dipstick.
Fig. 18
Fig. 19
