Engine Oil Filter; Air Filter - Craftsman 917.273663 Owner's Manual

ENGINEOIL FILTER
Replacethe engine oil filter every season
or everyother oil change if the tractor is
usedmore than 100hours in one year.
AIR FILTER
Yourenginewill not run properlyusing a
dirty air filter. Clean the foam pre-cleaner
after every 25 hours of operationor every
season. Service paper cartridge every
100 hoursof operationor every season,
whicheveroccurs first.
Serviceair cleaner moreoften under
dusty conditions.
1. Loosenknob and removecover.
TO SERVICEPRE-CLEANER
2. Slide foam pre-cleaneroff cartridge.
3. Wash it in liquiddetergentand water.
4. Squeezeit dry in a clean cloth. Allow
it to dry.
5. Saturateit in engineoil. Wrap it in
clean,absorbentcloth and squeezeto
removeexcessoil.
TO SERVICECARTRIDGE
• Replacea dirty, bent, or damagedcar-
tridge.
NOTE: Do not washthe paper cartridge
or use pressurizedair, as this will damage
the cartridge.
1. Removenut and cartridge plate.
2. Reinstallthe pre-cleaner(cleanedand
oiled) over the paper cartridge.
3. Checkrubber seal for damage and
proper positionaroundstud. Replace
if necessary.
4. Reassembleair cleaner,cartridge
plate, and nut.
5. Reinstallair cleaner coverand secure
by tightening knob.
Foam Cartrid¢
Pre-Cleaner
Rubber
Knob Seal
\
Cartridge
Plate
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 stub-
born 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 cool-
ing 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.
MUFFLER
Inspect and replace corroded muffler and
spark arrester (if equipped) as it could cre-
ate a fire hazard and/or damage.
SPARK PLUG(S)
Replace spark plug(s) 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.
IN-LINE FUEL FILTER
The fuel filter should be replaced once
each season. If fuel filter becomes
clogged, obstructing fuel flow to carbu-
retor, replacement is required.
1. With engine cool, remove filter and
plug fuel line sections.
2. Place new fuel filter in position in fuel
line with arrow pointing towards carbu-
retor.
3. Be sure there are no fuel line leaks and
clamps are properly positioned.
4. Immediately wipe up any spilled gaso-
line.
Clamp
Fuel Filt_
18