8664385
1.6 GPM @ 1,950 PSI Gas Pressure Washer
V 4.0
20
For technical questions call 1-800-665-8685
Problem(s)
Possible Cause(s)
Suggested Solution(s)
No or low
pressure (after
period of
normal use).
1. Worn seal or packing.
2. Worn or obstructed
valves.
3. Worn unloader piston.
Have parts cleaned or replaced by
authorized dealer.
Water leaking
at spray
gun/spray
wand
connection.
1. Worn or broken O-ring.
2. Loose hose connection.
1. Check and replace O-ring.
2. Tighten hose connection.
Water leaking
at pump.
1. Loose connections.
2. Piston packing is worn.
3. Worn or broken O-
rings.
4. Pump head or tubes
damaged from freezing.
1. Tighten connections.
2-4. Have parts cleaned or replaced by
authorized dealer.
Oil leaking at
pump.
1. Oil seals worn.
2. Loose drain plug.
3. Worn drain plug O-ring.
4. Worn fill plug O-ring.
5. Pump overfilled.
6. Incorrect oil used.
7. Vent plug clogged.
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.
Pump
pulsates.
Nozzle obstructed.
See Check Spray Wand and Pressure
Nozzles section.
No low
pressure
detergent
delivery.
1. Nozzle set on high
pressure.
2. Detergent adjustment is
closed or soap hose is
plugged.
3. Incorrect nozzle size.
1. Replace with brass soap nozzle.
2. Turn adjustment knob. counterclockwise
to open or unplug soap hose.
3. Install correct brass soap nozzle.
