13
H i g h P r e s s u r e W a s h e r
Nozzle Maintenance
If the adjustable nozzle becomes restricted or
clogged with foreign materials, such as dirt, excessive
pump pressure may develop. If this nozzle becomes
partially clogged, it can cause a pulsing sensation
during use. This generally is not a pump related
problem, but rather a clogged or partially restricted
adjustable nozzle.
If the adjustable nozzle becomes clogged or partially
restricted, immediately clean the nozzle with the kit
included with your pressure washer by following
these instructions:
Shut off the engine and turn off the water supply.
Separate the nozzle extension from the gun.
Adjust the nozzle extension to the stream position.
Remove the nozzle from the end of the nozzle exten-
sion (Figure 14) using a 2mm or 5/64 allen wrench
(like the one included in the kit).
Use the wire included in the kit (Figure 14) or a
small paper clip to free the foreign materials clog-
ging or restricting the nozzle.
Remove additional debris by back flushing the
water supply through the nozzle extension (Figure
15). Back flush between 30 to 60 seconds. Turn the
nozzle extension to stream spray and move the
nozzle from low to high while flushing.
Figure 15 — Backflushing the nozzle.
Reinstall the nozzle into the nozzle extension. DO
NOT over tighten.
Reconnect the nozzle extension to the gun.
Reconnect the water supply, turn on the water, and
start the engine.
Test the pressure washer by operating with nozzle
in the high and in the low position.
ENGINE MAINTENANCE
See the engine owners manual for instructions on
how to properly maintain the engine.
Figure 14 — Removing and cleaning nozzle.
Generac 1800PSI High Pressure Washer
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