Air Filter; Engine Cooling Fins; Spark Plug; In-Line Fuel Filter - Craftsman 917.270621 Owner's Manual

AIRF|LTER ........
Yourenginewill not run properlyusinga
dirty airfilter., C leanthe foam pre-cleaner
afterevery25 hoursof operationor
every
season° Service paper cartridge every !00
hours of operation or every season,
whichever occurs first.
Service air cleaner more often under.dusty
conditions,,
o 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.
o Reinstall pre-cteaner over cartridge..
o Reinstall cover and secure with knob(s)_
TO SERVICE CARTRIDGE
o Remove cartridge nut.
. Carefully remove cartridge to prevent
debris from entering carburetor. Clean
base carefully to prevent debris from
entering carburetor.
° Clean cartridge by tapping gently on flat
surface,. If very dirty or damaged,
replace cartridge..
. 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 car-
tridge.
Cover
Knob
Cartridge
Cover Nut
Foam
Pre-Cleaner
Paper
Cartridge
__------_ Base
ENGINE COOLING FINS ...........
Remc;_e anydust, dirt or 0il from engine
cooling fins to prevent engine damage
from overheating_
o Remove screws from blower housing
and lift housing and dipstick tube
assembly off engine..
o Cover 0il fill opening to prevent entry of
dirt.
Use compressed air or stiff bristle brush
to thoroughly clean engine cooling fins.
° To reassemble, reverse above proce-
dure.
Blower Housing
Screws Screws
air screen __
MUFFLER
Inspect and replace corroded muffler and
spark arrester (if equipped) as it could cre-
ate a fire hazard and/or damage
SPARK PLUGS
Replace spark plugs 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"
on page 5 of this manual.
tN-UNE 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.
• With engine cool, remove filter and plug
fuel line sections.
o Place new fuel filter in position in fuel
line with arrow pointing towards carbu-
retor.
o Be sure there are no fuel line leaks and
clamps are properly positioned_
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