Power Fist 8643926 Mode D'emploi page 25

V 4.0
Problem(s) Possible Cause(s)
No or low 1. Worn seal or
pressure (after
period of
2. Worn or obstructed
normal use).
3. Worn unloader
4. Worn E-Z start valve.
Water leaking at 1. Worn or broken O-
spray gun/spray
wand
2. Loose hose
connection.
Water leaking at 1. Loose connections.
pump.
2. Piston packing is
3. Worn or broken O-
4. Pump head or tubes
Oil leaking at 1. Oil seals worn.
pump.
2. Loose drain plug.
3. Worn drain plug O-
4. Worn fill plug O-ring.
5. Pump overfilled.
6. Incorrect oil used.
7. Vent plug clogged.
Pump pulsates. Nozzle obstructed.
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4.2 GPM @ 4,000 PSI Gas Pressure Washer
packing.
valves.
piston.
ring.
connection.
worn.
rings.
damaged from
freezing.
ring.
Suggested Solution(s)
Have parts cleaned or replaced by
authorized dealer.
1. Check and replace O-ring.
2. Tighten hose connection.
1. Tighten connections.
2-4. Have parts cleaned or replaced by
authorized dealer.
1. Have parts cleaned or replaced by
authorized dealer.
2. Tighten drain plug.
3. Inspect and replace O-ring.
4. Inspect and replace O-ring.
5. Check for correct amount.
6. Drain and refill with correct type and
amount of oil.
7. Clean vent plug. Use air hose to free it of
blockage. If problem persists, replace
vent plug.
See Check Spray Wand and Pressure
Nozzles section.
8643926
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