Generac Power Systems 1040-2, Owner'S Manual

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Cleaning Chemical Injector
System
If you have used the chemical injector system you
must flush it with clean water before stopping the
engine.
• Place the small filter end of the chemical injection
tube in a bucket of clean water.
• Slide the adjustable nozzle forward.
• Squeeze the spray gun trigger for 1–2 minutes to
flush the chemical injection tube.
• Shut off the engine.
Important: Simply shutting OFF engine will not release
pressure in the system. When engine has shut down,
squeeze the trigger on the gun to relieve the
pressure in the hose.
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 nozzle from the end of the wand extension
(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
clogging or restricting the nozzle.
• Remove additional debris by back flushing water
supply through wand extension (Figure 15). Back
flush between 30 to 60 seconds. Turn nozzle
extension to stream spray and move nozzle forward
and backward while flushing.
• Reinstall nozzle into the wand extension. Do not
over–tighten.
• Reconnect the nozzle extension to the spray 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 Owner’s Manual for instructions on
how to properly maintain the engine.
SERVICE AND
ADJUSTMENTS
See the engine Owner’s Manual for instructions on
how to properly service and adjust the engine
Generac 2000PSI High Pressure Washer
GENER
A
C
The Reliable Ones
14
Figure 14 — Removing and cleaning the nozzle.
Figure 15 — Removing and cleaning the nozzle.