Porter-Cable PCH3740 - Manual (Page 15)

15- ENG A08058
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 provided and
backflush with clean water.
5. Direct water supply into spray
wand to backflush loosened
particles for 30 seconds.
6. Reassemble the nozzle to the
wand.
7. Reconnect spray wand to gun
and turn on water supply.
8. Start pressure washer and place
spray wand into high pressure
setting to test.
HOW TO CLEAN THE WATER
INLET FILTER
This screen filter should be checked
periodically and cleaned if necessary.
1. Remove filter
by grasping
end and
removing it
from water inlet
of pump as
shown.
2. Clean filter by flushing it with
water on both sides.
3. Re-insert filter into water inlet
of pump. NOTE: Cone side faces
out.
NOTE: Do not operate pressure
washer without filter properly installed.
HOW TO REMOVE THE
WHEELS
1. Using a 1/8" hex
head wrench
loosen set screw
in hub collar.
2. Slide hub collar
from axle and
remove the tire.
Filter Screen