Craftsman 580.754910 Operator's Manual page 20

Change oil while engine is still warm from running,
as follows:
1. Drain fuel tank by running pressure washer until
fuel tank is empty.
2. Disconnect spark plug wire and keep it away from
spark plug.
3. Clean area around oil fill, remove oil fill cap/
dipstick. Wipe dipstick clean.
4. Tip your pressure washer toward the oil fill neck to
drain oil into a suitable container. When crankcase
is empty, return pressure washer to upright
position.
5. Slowly pour recommended oil (approximately 18 oz.)
into oil fill opening. Pause to permit oil to settle. Fill to
upper limit mark on dipstick.
6. Replace and tighten dipstick.
7. Wipe up any remaining oil.
8. Reconnect spark plug wire to spark plug.
Service Air Cleaner
Your engine will not run properly and may be damaged
if you run it with a dirty air cleaner. Service more
often if operating under dirty or dusty conditions.
Replacements are available at your local Sears service
center.
To service the air cleaner, follow these steps:
1. Press latch tabs (A) on top of air cleaner cover (B),
and remove cover.
2. Carefully remove air cleaner (C) from base (D).
3. Clean air cleaner by tapping it several times on a
hard surface to remove dirt, or blow compressed
air (not to exceed 30 psi) through air cleaner from
clean side that faces engine.
NOTICE NEVER try to brush off dirt. Brushing will
force dirt into the fibers.
4. Wipe dirt from air cleaner body and cover using a
moist rag. Be careful to prevent dirt from entering
air duct (E) that leads to the carburetor.
5. Install clean (or new) air cleaner in base. Air
cleaner must fit securely in base.
6. Reinstall air cleaner cover.
NOTICE You can purchase new air filter elements by
calling 1-888-331-4569.
Service Spark Plug
Changing the spark plug will help your engine to start
easier and run better.
1. Disconnect the cap from the spark plug and clean
area around spark plug.
2. Remove and inspect spark plug.
3. Replace spark plug if electrodes are worn, or if
insulator is cracked or chipped.
4. For replacement, use recommended spark plug,
NGK BPR6ES.
5.
Check electrode gap with wire feeler gauge and
set gap at 0.028-0.031 inches (0.70-0.80 mm), if
necessary.
6A. When reinstalling original spark plug, tighten
1/8-1/4 turn after the spark plug seats to compress
the washer.
6B. When installing new spark plug, tighten 1/2 turn
after the spark plug seats to compress the washer.
7. Attach the spark plug cap to the spark plug.
NOTICE You can purchase a new spark plug by
calling 1-888-331-4569.
Carburetor
If you think your carburetor needs adjusting, see your
nearest Sears service center. Engine performance may
be affected at altitudes above 5000 feet. For operation
at higher elevations, contact your nearest Sears service
center.
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