To Change Engine Oil; Air Filter Care; Spark Plug; Cleaning - Craftsman 917.388920 Owner's Manual

TO CHANGE ENGINE OIL
1. Disconnect spark plug wire from spark
plug and place wire where it cannot
come in contact with plug.
2. Be sure lawn mower is on level surface.
NOTE: Oil will drain more freely when
warm. Catch oil in a suitable container.
3. Remove bottom oil drain plug.
4. After oil has drained completely,
replace oil drain plug and tighten se-
curely.
5. Fill engine with oil. (See "ADD OIE' in
the Operation section of this manual).
6. Reconnect spark plug wire to spark
plug.
Drain plug
Screw ASSEMBLE ONE OF THESE LOW POINTS
TOWARDS_RROW EDGE OF ELEMENT
Lip Element Cup
ASSEMBLE SO LIP
EXTENDS OVER
EDGE OF
AIR CLEANER
BODY
LIP WILLFORM
PROTECTIVE
SEAL WHEN
COVERIS ASSEMBLED
MUFFLER
Inspect and replace corroded muffler as it
could create a fire hazard and/or damage.
SPARK PLUG
Replace spark plug at the beginning of
each mowing season or after every 100
hours of operation, whichever occurs
first. Spark plug type and gap setting
are shown in the "PRODUCT SPECIFIC-
ATIONS" section of this manual.
AIR FILTER
Your engine will not run properly and may
be damaged by using a dirty air filter.
Clean the element after every 25 hours of
operation or every season. Replace the air
filter every 100 hours of operation or every
season, whichever occurs first. Service air
cleaner more often under dusty conditions.
TO CLEAN AIR FILTER ELEMENT
1. Remove screw.
2. Remove air cleaner carefully to prevent
dirt from entering carburetor.
3. Take air cleaner apart and clean air
filter element.
4. Wash filter element in liquid detergent
and water.
5. Wrap filter element in cloth and
squeeze dry.
6. Lightly coat filter element with clean
engine oil. Squeeze in towel to remove
excess oil. Do not saturate.
7. Reassemble parts and put back on
carburetor.
CLEANING
IMPORTANT: For best performance,
keep mower housing free of built-grass
and trash. Clean the underside of your
mower after each use.
_I, CAUTION: Disconnect spark plug wire
from spark plug and place wire where it
cannot come in contact with plug.
• Clean the underside of your lawn
mower by scraping to remove build-up
of grass and trash.
• Clean engine often to keep trash from
accumulating. A clogged engine runs
hotter and shortens engine life.
• Keep finished surfaces and wheels free
of all gasoline, oil, etc.
• We do not recommend using a garden
hose to clean lawn mower unless the
electrical system, muffler, air filter and
carburetor are covered to keep water
out. Water in engine can result in short-
ened engine life.
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