Craftsman 917.273770 - Manual (Page 20)

8. Use gauge on oi! fill cap/dipstick for
checking level. For accurate reading,
tighten dipstick cap securely onto the
tube before removing dipstick. Keep oil
at “FULL’ line on dipstick. Tighten cap
onto the tube securely when finished.
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 cover.
TO SERVICE PRE-CLEANER
2. Wash it in liquid detergent and water.
3. Squeeze it dry in a clean cloth.
4. Saturate it in engine oil. Wrap it in
clean, absorbent doth and squeeze to
remove excess oil.
NOTE: If very dirty or damaged, replace
pre-cleaner.
TO SERVICE CARTRIDGE
1. Clean cartridge by tapping gently on
flat surface. If very dirty or damaged,
replace cartridge.
2. Reinstall precleaner cartridge, cover
and secure.
IMPORTANT: Petroleum solvents, such
as kerosene, are not to be used to clean
the cartridge. They may cause deterio­
ration of the cartridge. Do not oil car­
tridge. Do not use pressurized air to clean
or dry cartridge.
Knobs -
Cover
Foam
Pre-Cleaner
Cartridge
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/COOLINO 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
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.
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.
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
dogged, 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 carburetor.
3. Be sure there are no fuel line leaks and
clamps are properly positioned.
4. Immediately wipe up any spilled gaso­
line.
Clamp
Fuel Filter
Clamp
20