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Craftsman 917.273421 Owner's Manual page 23

18 hp electric start 46" mower automatic lawn tractor

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• Remove hood and grille assembly (See
Service and Adjustment
section of this
manual.)
• Remove air intake screen and baffle
assembly from top of engine.
• Remove wing bolts, washers 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
_ Carefully remove cartridge to prevent
debris from entering carburetor.
Clean cartridge b_/tapping gently on flat
surface.
If very dirty or damaged,
replace cartridge.
• Reinstall precteaner,
cover and secure
with washers and wing bolts.
• Replace air intake screen and baffle
assembly.
• Replace hood and grille assembly.
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
cartridge.
Intake
_Retaining Clip
Screen and
Bolt
Baffle
Precleaner
Radiator
Screen
ge
ENGINE
OIL FILTER
Replace the engine oil filter every season
or with every second oil change if the trac-
tor is used more than 200 hours in one
year.
_
CHANGE
ENGINE
COOLANT
CAUTION:
To avoid burns do not
remove the reservoir cap, radiator cap, or
try to change the coolant when the engine
is still hot. Wait until it cools down. Since
the coolant is harmful to the human body,
do not use for drinking.
• Remove
radiator
cap by first turning the
cap counterclockwise
to the first stop.
Push down on the cap, turn counter-
clockwise
to the next stop and lift off the
cap.
• Locate the drain in the radiator hose on
the oil filter side of the engine.
• Place a suitable container under the
drain outlet.
• Using two wrenches, hold the drain to
prevent it from twisting and then remove
the drain plug.
* After coolant has drained completely,
replace drain plug and tighten securely.
• Refill engine with new coolant to the
radiator filler neck bottom. Pour slowly
so the coolant can expel the air from
engine and radiator. For coolant type
and approximate capacity see =PROD-
UCT SPECIFICATIONS" on page 5 of
this manual.
• Replace radiator cap. Push down on
cap while turning cap clockwise until it
reaches the last stop.
• Remove trapped air in the cooling sys-
tem - start the engine and allow it to
warm up thoroughly.
• Checkthe coolant level (See "CHECK
COOLANT LEVEL" in the Operation
section of this manual).
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.
IN-LINE FUEL FILTER
The fuel filter should be replaced of_ce
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.
• Placenew fuel filter in position in fuel
line with arrow pointing towards carbu-
retor.
• Be sure there are no fuel line leaks and
clamps are properly positioned.
• Immediately wipe up any spilled gaso-
line.
Clam_
Clamp
Fuel Filter _
_
:
23

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