Craftsman 917.256812 Owner's Manual page 18

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AIR FILTER (See Fig. 13)
Your engine will not run properly using a dirty air fitter_
Clean the foam pre-cleaner after every 25 hours of opera-
tion 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°
Remove knob(s) and cover..
TO SERVICE PRE-CLEANER
°
Slide foam pre-cleaner off cartridge_
.
Wash it in liquid detergent and water_
=
Squeeze it dry in a clean cloth
Saturate it in engine oil. Wrap it in clean, absorbent
°
cloth and squeeze to remove excess oil
°
If very dirty or damaged, replace pre-cleaner.
°
Reinstall pre-cleaner over cartridge,
°
Reinstall cover and secure with knob(s)_
TO SERVICE CARTRIDGE
CLEAN AIR SCREEN (See Fig. 14)
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 stubborn dried gum
fiber's.
ENGINE
COOLING
FINS (See
Fig, 14)
Remove any dust, dirt or oil from engine cooling fins to
prevent engine damage from overheating.
°
Remove cartridge nut.
°
Carefully remove cartridge to prevent debris from en-
tering carburetor.
Clean base carefully to prevent
debris from entering carburetor.
°
Cleancartridgebytappinggentlyonflatsurface_
If very
dirty or damaged, replace cartridge.
o
Reinstall cartridge, nut, precleaner, cover and secure
with knob(s)_
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..
COVER KNOB "---'-'-_'_
CARTRIDGE
Remove screws from blower housing and lift housing
and dipstick tube assembly off engine.
Cover oil flu opening to prevent entry of dirt.
Use compressed air' or stiff bristle brush to thoroughly
clean engine cooling fins_
To reassemble, reverse above procedure,,
SCREWS
BLOWER HOUSING
DIPSTICK
TUBE
ASSEMBLY
AIR SCREEN
SCREWS
ENGINE
rCOOLING FINS
FIG. 14
FIG. 13
18

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