Murray 198933 Instruction Book page 14

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 sur-
face.
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 OIL" in
the Operation section of this manual).
6. Reconnect spark plug wire to spark
plug.
Drain plug
AIR FILTER
Your engine will not run properly and may be
damaged by using a dirty air fi lter. Clean the
element after every 25 hours of operation or
every season. Replace the air fi lter every
100 hours of operation or every season,
whichever occurs fi rst. Service air cleaner
more often under dusty conditions.
TO CLEAN AIR FILTER ELEMENT
1. Remove screw.
2. Re move air cleaner carefully to pre vent
dirt from en ter ing carburetor.
3. Take air cleaner apart and clean air
fi lter element.
4. Wash fi lter element in liquid de ter gent
and water.
5. Wrap fi lter element in cloth and
squeeze dry.
6. Lightly coat fi lter element with clean
engine oil. Squeeze in towel to re move
excess oil. Do not satu rate.
7. Reassemble parts and put back on
carburetor.
Screw ASSEMBLE ONE OF THESE LOW POINTS
TOWARDS NARROW EDGE OF ELEMENT
Lip Element
ASSEMBLE SO LIP
EXTENDS OVER
EDGE OF
AIR CLEANER
BODY
LIP WILL FORM
PROTECTIVE
SEAL WHEN
COVER IS ASSEMBLED
MUFFLER
Inspect and replace corroded muffl er as it
could create a fi re hazard and/or dam age.
SPARK PLUG
Replace spark plug at the beginning of
each mowing season or after every 100
hours of operation, whichever occurs
fi rst. Spark plug type and gap setting
are shown in the "PROD UCT SPEC I FI C-
A TIONS" section of this manual.
CLEANING
IMPORTANT: For best performance, keep
mower housing free of built-up grass and
trash. Clean the underside of your mower
after each use.
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 fi nished 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, muffl er, air fi lter and
carburetor are covered to keep water
out. Water in engine can result in short-
ened engine life.
14
Cup Body