Nozzle Maintenance; Change Pump Oil - Generac 49-ST-CSA El Manual Del Propietario

Maintenance and Troubleshooting
1. Verify spray gun hose connection is
secure.
2. Squeeze and release trigger.
NOTE: Trigger should spring back into place
and lock when released.

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:
WARNING
Fluid Injection. This machine produces
high-pressure fluid streams that can pierce
skin. Fluid injection could result in death or
serious injury.
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.
12
Swivel Wheel Maintenance
See Grease Swivel

Change Pump Oil

3300 and 3600 PSI Units
1. See
drain plug (A).
2. Place a small pan under oil drain plug to
catch oil.
3. Remove oil drain plug. Drain oil com-
pletely.
4. Install oil drain plug. Do not over tighten.
5. See
oil dipstick (B).
6. See
non-detergent oil. Oil level must be within
(000106b)
markings on dipstick. Do not overfill.
7. Install oil dipstick and hand-tighten.
8. Clean up any spilled oil.
9. Properly dispose of oil in accordance with
all applicable regulations.
000109
000131
4000 & 4200 psi Units
1. See
drain plug (C).
2. Place pan under oil drain plug to catch oil.
3. Remove
completely.
4. Install oil drain plug, do not overtighten.
5. Remove oil fill cap (B) and fill pump with
ISO 68 hydraulic oil until red bead is
centered on sight glass (A).
Wheel.
Figure 4-4. Clean area around oil
Figure 4-4. Clean area around pump
Figure 4-5. Fill pump with SAE 30
B
A
Figure 4-4. Drain Pump Oil
Figure 4-5. Pump Oil Dipstick
Figure 4-6. Clean area around oil
oil drain plug.
Owner's Manual for Power Washer
009079
000268
Drain oil