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5. e
ngine
o
peration
(cont.)
5.3 Checking Air Filter
D
Unscrew the butterfly nut by hand and take off the air filter
cover, then repeat with the second nut, and pull out the air
filter element carefully. Wash it with clean water. Next, soak
the filter in engine oil, and then squeeze the oil out. Place the
air filter back and replace the air filter cover.
IMPORTANT
Clean air filter element for every 50 hours of use (every
10 hours under dusty conditions). Wash in high flashpoint
solvent, squeeze dry, dip in clean engine oil, and squeeze
out excess oil.
5.4 Purging
F
Release the safety trigger if it is locked.
G
PURGING
Purge air by squeezing the trigger on the gun until there is a
steady stream of water.
WARNING — DEPRESSURIZED
After cleaning is completed turn off the water supply
and pull the trigger to depressurize the unit. Failure to
do so might result in personal injury due to discharge of
high-pressure water.
Engine Operation
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