Spark Plugs - Craftsman 917.28866 Operator's Manual

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.
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.
AIR FILTER
Your engine will not run properly using a
dirty air filter. Clean the foam pre-cteaner
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 fiat
surface. Ifvery dirty or damaged, replace
cartridge.
2. Reinstall precleaner cartridge, coverand
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 air to clean or dry cartridge.
Knobs_
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Cartridge
Foam
r
Pre-Cleaner_'_
CLEAN AIR INTAKE/COOLING AREAS
To insure proper cooling, make surethe grass
screen, cooling fins, and other external sur-
faces of the engine are kept ctean atall 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. Make sure the cooling
shrouds are reinstalled.
NOTE: Operating the enginewith a blocked
grass screen, dirty or plugged cooling fins,
and/or cooling shrouds removed wilt 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 beginningof
each mowing season or afterevery 100
hours of operation, w hicheveroccursfirst.
Spark plugtypeand gap setting a reshown
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 carbure-
tor, replacement is required.
1. With engine coot, 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.
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