User Manual

Maintenance and Troubleshooting
12 Owner’s Manual for Power Washer
Change Engine Oil
When using power washer under extreme,
dirty, dusty conditions, or in extremely hot
weather, change oil more frequently.
NOTE: Don’t pollute. Conserve resources.
Return used oil to collection centers.
Change oil while engine is still warm from
running, as follows:
1. Place power washer on a level surface.
2. Disconnect the spark plug wire from the
spark plug and place the wire where it
cannot contact spark plug.
3. Clean area around oil fill, and oil drain
plug.
4. Remove oil fill cap.
5. See Figure 4-7. Remove oil drain plug (A)
and drain oil completely into a suitable
container.
6. Install oil drain plug and tighten securely.
7. See Figure 4-6. Slowly pour oil into oil fill
opening until oil level is between L and H
marks on dipstick. DO NOT overfill.
8. Install oil fill cap, and finger tighten.
9. Wipe up any spilled oil.
10. Properly dispose of oil in accordance with
all applicable regulations.
Figure 4-7.Oil Drain Plug
Air Filter
Engine will not run properly and may be
damaged if run with a dirty air cleaner. Service
air cleaner more frequently in dirty or dusty
conditions.
To service air cleaner:
1. Remove air cleaner cover.
2. Remove filter element(s).
3. Inspect filter element(s) and replace if
damaged. To order replacements, contact
Generac Customer Service at 1-888-
GENERAC (888-436-3722) for the name
of your nearest Independent Authorized
Service Dealer.
4. Clean foam filter element in warm soapy
water. Rinse, and allow to dry thoroughly.
Dip in clean engine oil and squeeze out
excess oil.
5. Tap paper filter element several times on
hard surface to remove dirt. Compressed
air (not exceeding 30 psi (207 kPa) can
also be used to blow through filter element
from the inside.
6. Use a clean, damp cloth to wipe dirt from
inside air cleaner cover.
7. Put cleaned or new filter element(s) in
place. Verify gasket is in place (if
equipped).
8. Install air cleaner cover. Tighten air
cleaner screws or fasteners securely.
Service Spark Plug
To service spark plug:
1. Clean area around spark plug.
2. Remove and inspect spark plug.
3. See Figure 4-8. Inspect electrode gap with
wire feeler gauge and replace spark plug if
gap (A) is not within specification listed on
Product Specifications Sheet.
Figure 4-8. Spark Plug
NOTE: Replace spark plug if electrodes are
pitted, burned or porcelain is cracked. Use
ONLY recommended replacement plug. See
Product Specifications Sheet.
4. Install spark plug finger tight, and tighten
an additional 3/8 to 1/2 turn using spark
plug wrench.
Inspect Engine Spark
1. Disconnect spark plug wire from spark
plug.
2. Secure spark plug wire where it cannot
contact spark plug.
3. Test spark plug with approved spark plug
tester.
NOTE: DO NOT inspect for spark with spark
plug removed.
Inspect Muffler And Spark Arrestor
NOTE: It is a violation of California Public
Resource Code, Section 4442, to use or
operate the engine on any forest-covered,
brush-covered, or grass-covered land unless
the exhaust system is equipped with a spark
arrestor, as defined in Section 4442, maintained
in effective working order. Other states or
federal jurisdictions may have similar laws.
001556
A
000134a
(000102)
WARNING
Accidental Start-up. Disconnect spark plug wire
when working on unit. Failure to do so could result
in death or serious injury.