Air Filter/Engine Oil Filter; Clean Air Screen/Air Intake/Cooling Areas; Muffler/Spark Plugs/In-Line Fuel Filter; Cleaning - Craftsman 917.273180 Owner's Manual

Lawn tractor 17.5 hp, 42" mower electric start automatic transmissi
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AIR FILTER
Yourengine will not run properly using a
dirty 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 occursfirst.
Service air cleaner more often under dusty
conditions.
1. Remove knob and cover.
2. Remove wing nut and air cleaner from
base.
TO SERVICE PRE-CLEANER
3. Slide foam pre-cleaner off cartridge.
4. Wash it in liquid detergent and water.
5. Squeeze it dry in a clean cloth. Allow it
to dry.
6. Saturate it in engine oil. Wrap it in
clean, absorbent cloth and squeeze to
remove excess oil.
TO SERVICE CARTRIDGE
1. Replace a dirty, bent, or damaged
cartridge.
NOTE:
Do not wash the paper cartridge
or use pressurized
air, as this will damage
the cartridge.
2. Reinstall the pre-cleaner
(cleaned and
oiled) over the paper cartridge.
3. Reassemble air cleaner, wing nut,
cover and tighten knob securely.
Air Cleaner
Cover _
Knob
Nut
Foam \
Pre-
\
Rubber
Cleaner
Grommet
Screen
Paper
Cartridge
Air Cleaner
Base
Fill Cap/
Dipstick
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 air to remove dirt and stub-
born dried gum fibers,
21
CLEAN AIR INTAKE/COOLING
AREAS
To insure 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. Make sure
the cooling shrouds are reinstalled.
NOTE:
Operating the engine with a
blocked grass screen, dirty or plugged
cooling fins, and/or cooling shrouds re-
moved will cause engine damage due to
overheating.
MUFFLER
Inspect and replace corroded muffler and
spark arrester (if equipped) as it could cre-
ate a fire hazard and/or damage.
SPARK PLUG(S)
Replace spark plug(s) 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"
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 carbu-
retor, replacement is required.
1. With engine cool, 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.
Clamp
Fuel Filter
CLEANING
• Clean engine, battery,seat, finish, etc. of all
foreign matter.
• Keep finished surfaces and wheels free of all
gasoline, oil, etc.
• Protect painted surfaceswith automotive
type wax.
We do not recommend using a garden hose or
pressurewasher to clean your tractor unless
the engine and transmissionare covered to
keep water out.Water in en.gineor transmis-
sion willshorten the useful lifeof your tractor.
Use compressed air or a leaf blowerto remove
grass, leaves and trash from tractor and
mower.

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