Air Filter; Clean Air Screen; Clean Air Intake/Cooling Areas; Muffler - Craftsman 917.28858 Operator's Manual

AIR FILTER
Your engine will not run properly using a
dirb] 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 Iiquid 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. 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 deteriora-
tion of the cartridge. Do not oil cartridge.
Do not use pressurized air to clean or dry
cartddge.
Cover
Cartridge
f
Foam i
Pre-Cleaner.1__
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 dusty, dirty conditions),
remove the blower housing and other cooling
shrouds. Clean the cooling fins and external
surfaces as necessary. Makesurethe cooling
shrouds are reinstalled.
NOTE: Operating the enginewith ablocked
grass screen, dirty or plugged cooling fins,
and!or cooling shrouds removed wallcause
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 t00
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 fue_filter should be replaced onceeach
season, if fuel filter becomes clogged, ob-
structing fuel flowto carburetor,replacement
is required.
1. With engine cool, remove filter and plug
fuel line sections.
2. Place new fuel filter inposition infuel line
with arrow pointing towards carburetor.
3. Be sure there are no fue! line leaks and
clamps are properly positioned.
4. Immediaterywipe up anyspilled gasoline,
Clam__amp
Fue[ Filter
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