Craftsman 917.273840 - Manual (Page 21)

AIR filter
Your engine will not run properly using a
dirty air filter. Clean the foam pre-deaner
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. Loosen knobs and remove cover.
TO SERVICE PRE-CLEANER
2. Remove foam pre-cleaner from cover.
3. Wash it in liquid detergent and water.
4. Squeeze it dry in a clean doth. Allow it
to dry.
5. Saturate it in engine oil. Wrap it in
dean, absorbent cloth and squeeze to
remove excess oil.
TO SERVICE CARTRIDGE
• Replace a dirty, bent, or damaged car­
tridge. Handle new cartridge carefully;
do not use if the rubber sea! is dam­
aged.
NOTE: Do not wash the paper cartridge
or use pressurized air, as this will damage
the cartridge.
1. Remove cartridge.
2. Gently tap pleated side of cartridge to
dislodge dirt.
3. Install cleaned or new cartridge with
the pleated side “out” and seat the
rubber seal onto the edges of the air
cleaner base.
4. Reinstall the pre-cleaner (cleaned and
oiled) into the cover. Make sure the
hole in pre-cleaner is aligned with the
upper mounting knob.
5. Reinstall air cleaner cover and secure
by tightening knobs.
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 exter­
nal 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
externa! surfaces as necessary. Make sure
the cooling shrouds are reinstalled.
NOTE: Operating the engine with a
blocked grass screen, dirty or plugged cool­
ing 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 cartouretor.
3. Be sure there are no fuel line leaks
and clamps are properly positioned.
4. Immediately wipe up any spilled gasoline.
Clamp
Fuel Filter
Clamp
CLEANING
• Clean engine, battery, seat, finish, etc.
of all foreign matter.
• Keep finished surfaces and wheels free
of all gasoline, oil, etc.
• Protect painted surfaces with auto­
motive type wax.
We do not recommend using a garden
hose or pressure washer to clean your
tractor unless the engine and transmis­
sion are covered to keep water out. Water
in engine or transmission will shorten the
useful life of your tractor. Use compressed
air or a leaf blower to remove grass,
leaves and trash from tractor and mower.
21