Craftsman 917.272420 - Manual (Page 21)

8, Use gauge on oil fill cap/dipstick for
checking level. Insert dipstick into the
tube and rest the oil fill cap on the
' tube. Do not thread the cap onto the
tube when taking reading. Keep oil
at “FULL” line on dipstick. Tighten cap
onto the tube securely when finished.
Oil Drain Valve
TO SERVICE PRE-CLEANER
3. Slide foam pre-cleaner off cartridge.
4. Wash it in liquid detergent and water.
5. Squeeze it dry in a clean cloth. Allow it
to dry.
6. Saturate it in engine oil. Wrap it in
clean, absorbent cloth and squeeze to
remove excess oil.
TO SERVICE CARTRIDGE
• Replace a dirty, bent, or damaged
cartridge.
NOTE: Do not wash the paper cartridge
or use pressurized air, as this will damage
the cartridge.
7. Reinstall the pre-cleaner (cleaned and
oiled) over the paper cartridge.
8. Reassemble air cleaner, wing nut,
cover and tighten knob securely.
.Cover
Knob
Air Cleaner
Cover
CLEAN AIR SCREEN
Air screen must be kept free of dirt and
chaff to prevent engine damage from
overheating. Clean with a wire brush or
compressed air to remove dirt and
stubborn dried gum fibers.
CLEAN AIR INTAKE/COOLING AREAS
To insure proper cooling, make sure the
grass screen, cooling fins, and other
external surfaces of the engine are kept
clean at all times.
Every 100 hours of operation (more often
under extremely dusty, dirty conditions),
remove the blower housing and other
cooling shrouds. Clean the cooling fins
and external surfaces as necessary.
Make sure the cooling shrouds are
reinstalled.
NOTE: Operating the engine with a
blocked grass screen, dirty or plugged
cooling fins, and/or cooling shrouds
removed will cause engine damage due
to overheating.
AIR FILTER
Your engine will not run properly using a
dirty air filter. Clean the foam pre-cleaner
after every 25 hours of operation or every
season. Service paper cartridge every
100 hours of operation or every season,
whichever occurs first.
Service air cleaner more often under
dusty conditions.
1. Remove knob and cover.
2. Remove wing nut and air cleaner
from base.
Foam
Pre­
Cleaner
Wing Nut
Rubber
Grommet
Air Cleaner
Paper
Cartridge
Air Cleaner
Base
Air.
Screen
MUFFLER
Inspect and replace corroded muffler and
spark arrester Of equipped) as it could
create a fire hazard and/or damage.
SPARK PLUGS
Replace spark plugs 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 “PRODUCT SPECIFICATIONS"
section of this manual.
ENGINE OIL FILTER
Replace the engine oil filter every season
or every other oil change if the tractor is
used more than 100 hours in one year.
1, Drain oil from engine crankcase (See
“TO CHANGE ENGINE OIL” in this
section of this manual, through step
remove drain plug).
2. Remove oil filter and wipe off filter
adapter.
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