DeWalt DXPW4240 Guide D'utilisation page 16

Remove pump oil plug and fill with pump oil. An oil designed
5.
specifically for pressure washers is recommended as these contain
a rust inhibitor and an anit-foaming agent. If this oil is not available,
an SAE 30W non-detergent oil may be used.
6. Replace pump oil plug and tighten securely.
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.
5. Direct water supply into spray wand 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.
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. Cone
side faces out.
NOTE: Do not operate pressure washer without
filter properly installed.
STORAGE
Consult the engine instruction manual for the man u fac tur er's
recommendations for storage.
Y
The manufacturer
winterizer when storing the unit for more than 30 days and/or
when freezing temperatures are expected. If a pump protector/
winterizer is not available, RV antifreeze can be used as outlined in the
following steps.
NOTE: Using a pump protector/ winterizer or RV antifreeze helps
to provide proper lubrication to the internal seals of the pump
regardless of temperature or environment.
1. Obtain a funnel, 6 oz. (170 mL)
of RV antifreeze and 16–36" (40–
91cm) of garden hose with a male
hose connector attached to one
end.
NOTICE: Risk of property damage.
freeze is corrosive and can damage
pump.
16
recommends using a pump
U
protector/