Nozzle Cleaning - DeWalt DP3700 Instruction Manual

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 (BB) provid-
ed 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.
To Clean the Water Inlet Filter
This filter screen (V) should be checked
periodically and cleaned if necessary.
1. Remove the filter screen (V) 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.
NOTE: Do not operate pressure washer without filter properly
installed.
To Remove Tires
1. Using a 1/8" hex head wrench loosen set
screw in hub collar.
2. Slide hub collar from axle and remove the
tire.
STORAGE
BB
Engine
Consult the engine instruction manual for the man u fac tur er's
recommendations for storage.
Pump
The manufacturer recommends using a pump protector/winterizer,
such as DP80 when storing the unit for more than 30 days and/or
when freezing temperatures are expected. DP80 is availabe at the
store where the pressure washer was purchased. If a pump protector/
winterizer is not available, RV antifreeze needs to be run through the
pump as outlined in the steps below.
NOTE: Using a pump protector/ winterizer or RV antifreeze is to
provide proper lubrication to the internal seals of the pump regard-
less 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.
CAUTION: Risk of property damage. Use only RV antifreeze. Any
other an ti freeze is corrosive and can damage pump.
V
2. Disconnect spark plug wire.
3. Connect length of garden hose to water inlet of pump.
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