Nozzle Cleaning - DeWalt DXPW3394 Instruction Manual

temperatures or dusty conditions, more fre quent maintenance checks
will be required.
Engine
Consult the engine instruction manual for the man u fac tur er's
recommendations for any and all maintenance.
Pump
The pump was filled with oil at the factory. The pump on this
unit is maintenance free and requires no oil. If there is a problem with
the pump contact us at

Nozzle Cleaning

If the nozzle becomes clogged with foreign materials, such as dirt,
excessive pressure may develop. If the nozzle becomes partially
clogged or restricted, the pump pressure will pulsate. Clean the
nozzle immediately using the nozzle kit supplied and the following
instructions:
1. Shut off the pressure washer and turn off the water supply.
2. Pull trigger on gun handle to relieve any water pressure.
3. Disconnect the spray wand from the gun.
4. Remove the high pressure nozzle from the spray wand. Remove
any obstructions with the nozzle cleaning tool (Y) provided and
back flush with clean water.
FIG. 20
Y
FIG. 21
5. Direct water supply into spray nozzle to back flush loosened
particles for 30 seconds.
6. Reassemble the nozzle to the wand.
7. Reconnect spray wand to gun then turn on water supply.
8. Start pressure washer and place spray wand into high pressure
setting to test.
To Clean the Water Inlet Filter (Fig. 10)
This filter screen (U) should be checked periodically and cleaned if
necessary.
1. Remove the filter screen (U) by grasping the end and removing it
from water inlet of pump.
2. Clean filter by flushing it with water on both sides.
3. Reinsert filter into water inlet of pump. Convex side faces out.
NOTE: Do not operate pressure washer without filter properly
installed.
16