Craftsman 917.28858 Operator's Manual page 24

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, which-
ever 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 cloth 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, ifverydirtyordamaged, 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 deterioration of
the cartridge. Do not oil cartridge. Do not
use pressurized airto clean or dry cartridge.
Knobs\_
Cover
i_Cartridg e
Foam / ..............
_--]
Pre-Oleaner k__._ji,'
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 airto
remove dirt and stubborn dried gum fibers.
CLEAN AIR INTAKE/COOLING AREAS
To ensure 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 dust,7, dirty conditions),
removethe blower housing and other cooling
shrouds. Clean the cooling fins and external
surfaces as necessary. Make surethe cooling
shrouds are reinstalled.
NOTE: Operatingthe engine with ablocked
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 create
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, ob-
structing fuelflowto carburetor, replacement
is required.
1. With engine cool, remove filter and plug
fuel line sections.
2. PIace newfuel filter in position infuel 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 gasoline.
FuelFilter -_-_--__--J
24