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MAINTENANCE
CLEANING/REPLACING THE AIR FILTER
See Figure 23.
A dirty air filter will cause starting difficulty, loss of perfor-
mance, and shorten the life span of the engine. Check the
air filter monthly. For best performance, replace the paper
air filter at least once a year.
z Remove the wing nut from the air cleaner cover, then
remove the cover.
z Remove the wing nut from the air cleaner assembly, then
remove the air cleaner assembly.
z Separate the foam filter from the paper filter. Inspect both
filters and replace if damaged.
z To clean the paper filter, use compressed air or tap the
paper filter element several times on a hard surface to
remove dirt.
z Clean the foam filter with warm soapy water. Rinse and
let dry.
z Apply a light coat of engine lubricant to the foam filter
element, then squeeze it out.
z Reinstall the foam filter over the paper filter.
z Reinstall the air cleaner assembly, then reinstall the wing
nut to secure.
NOTE: Make sure the gasket is in place before reinstalling
the air cleaner assembly.
z Using a damp cloth, wipe the inside of the air cleaner
cover. Take care not to allow dust to enter the carburetor.
z Reinstall the air cleaner cover, then reinstall the wing nut
to secure.
NOTE: Do not run the pressure washer without the air filter.
Rapid engine wear will result.
CHANGING ENGINE LUBRICANT
See Figure 24.
z Shut off the engine.
z Clean the area around the oil cap/dipstick, then remove
the oil cap/dipstick.
NOTE: Remove the dipstick to allow lubricant to drain
easier and more quickly.
z Disconnect the spark plug wire from the engine.
z To drain the lubricant, remove the drain plug from the bot-
tom of the engine. Drain lubricant into approved container,
then reinstall drain plug and tighten securely.
NOTE: Drain the lubricant while the engine is still warm
but not hot. Warm lubricant will drain quickly and more
completely.
WARNING:
Do not change engine lubricant while it is hot. Accidental
contact with hot engine lubricant could result in serious
burns.
z Fill with lubricant following the instructions in Adding/
Checking Engine Lubricant earlier in this manual. For
amount of lubricant needed to refill, see Product Specifi-
cations earlier in this manual or the accompanying engine
manual, if applicable.
z Before using the pressure washer, check to ensure that
no lubricant is leaking from the engine.
NOTE: Consult hazardous waste management guidelines in
your area for the proper way to dispose of used lubricant.
CHECKING THE SPARK PLUG
See Figure 25.
z Clean the area around the base of the spark plug before
removing to keep dirt and debris out of the engine. Re-
move spark plug.
z Clean off carbon deposits on the spark plug electrode
using a plug cleaner or wire brush. Replace the plug if
worn or reuse is questionable. For replacement spark
plug, see Product Specifications earlier in this manual
or the accompanying engine manual, if applicable.
z Check electrode gap. The gap should be 0.7 – 0.8 mm.
Adjust the gap, if necessary, by carefully bending the
ground electrode.
z Check the condition of the spark plug gasket.
z Reinstall spark plug. Start the spark plug in its threads
by hand and finger-tighten.
z Tighten with wrench to compress washer. If spark plug
is new, use 1/2 turn to compress washer appropriate
amount. If reusing old spark plug, use 1/8 to 1/4 turn for
proper washer compression.
NOTE: An improperly tightened spark plug will become
very hot and could damage the engine.
PUMP LUBRICATION
The pump on this product was lubricated with a sufficient
amount of high grade lubricant for the life of the unit under
normal operating conditions. Therefore, no further lubrica-
tion is required.
PUMP MAINTENANCE
Routinely make a visual inspection of the pump. If you
notice any leaking of lubricant around the pump seals, take
the pressure washer to a qualified service center for repair.
There are no user serviceable parts to the pressure washer
pump. Any attempt to service or alter the pump may dam-
age the pressure washer and void your product warranty.
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