User Manual

Maintenance and Troubleshooting
Owner’s Manual for Power Washer 11
Nozzle Maintenance
A pulsing sensation felt when squeezing spray
gun trigger may be caused by excessive
pump pressure. Typical causes of excessive
pump pressure are nozzle clog or restriction.
Immediately clean nozzle as follows:
1. Turn engine and water supply OFF.
NOTE: Keep high-pressure hose connected
to pump and spray gun while system is
pressurized.
2. Relieve spray gun water pressure.
3. Remove nozzle from lance.
4. See Figure 4-2. Use a paper clip to remove
debris.
5. See Figure 4-3. Remove lance from spray
gun and back flush thoroughly.
6. Install nozzle on lance.
7. Install lance on spray gun.
Figure 4-2.Remove Debris
Figure 4-3.Back Flush Lance
8. Verify hose is connected to pump water
inlet, and high-pressure hose is connected
to spray gun and pump.
9. Turn water ON.
10. Start engine.
11. Test power washer by operating with each
quick connect nozzle.
Engine Maintenance
Engine Oil Recommendations
To maintain the product warranty, the engine oil
should be serviced in accordance with the
recommendations of this manual. For your
convenience, Generac Maintenance Kits are
available that include engine oil, oil filter, air
filter, spark plug(s), a shop towel and funnel.
These kits can be obtained from an
Independent Authorized Service Dealer (IASD).
Only high-quality detergent oils classified for
service SJ or higher are recommended. DO
NOT use special additives.
Climate determines proper engine oil
viscosity. See chart to select correct viscosity.
Figure 4-4. Oil Viscosity
* Below 50°F (10°C) use of SAE 30 will result
in hard start.
** Above 80°F (27°C) use of 10W30 may
cause increased oil consumption. Inspect oil
level more frequently.
Inspect Engine Oil Level
Inspect engine oil level prior to each use, or
every 8 hours of operation.
1. Place power washer on a level surface.
2. Clean area around oil fill.
3. See Figure 4-5. Remove oil fill cap and
wipe dipstick clean.
Figure 4-5. Engine Oil Fill
4. See Figure 4-6. Screw dipstick into filler
neck.Verify proper oil level on dipstick.
Figure 4-6. Oil Level
5. Add recommended engine oil as
necessary.
6. Replace oil fill cap and hand-tighten.
NOTE: Some units have more than one oil fill
location. It is only necessary to use one oil fill
point.
(000106)
DANGER
Fluid Injection. This machine produces
high-pressure fluid streams that can pierce
skin. Fluid injection will result in death or
serious injury.
000109
000131
000130
SAE 30*
5W-30
10W-30**
000115
000116