Nozzle Maintenance; Belt Replacement - DR Power Equipment DPW3800DMN El Manual Del Propietario

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:
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 pres-
surized.
2. Relieve spray gun water pressure.
3. Remove nozzle from lance.
4. See Figure 4-2. Use a paper clip to remove
debris.
Figure 4-2. Remove Debris
5. See Figure 4-3. Remove lance from spray
gun and back flush thoroughly.
Figure 4-3. Back Flush Lance
6. Install nozzle on lance.
7. Install lance on spray gun.
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.
12
WARNING
(000106b)
11. Test power washer by operating with each
quick connect nozzle.
Potential of cancer. Prolonged or repeated contact
with used motor oil has been shown to cause cancer
in laboratory animals. Thoroughly wash exposed
areas with soap and water.
Change Pump Oil
1. Clean area around oil drain plug. See
ure 4-10.
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. Clean area around pump oil dipstick.
6. Fill pump with SAE 15W40 non-detergent
oil. Oil level must be within markings on
dipstick. See
7. Install oil dipstick until finger tight.
8. Clean up any spilled oil.
000109
Figure 4-5. Pump Oil Dipstick

Belt Replacement

000131
It may be necessary to replace belt if it breaks
or if there is a sudden loss of pressure:
1. Remove belt guard.
WARNING
Figure 4-11. Do not overfill.
Figure 4-4. Drain Pump Oil
Owner's Manual for Power Washer
(000127a)
Fig-
000275
000268