Craftsman 917.273390 - Manual (Page 20)

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.
AIR FILTER
Your engine will not run properly using a
dirty air filter. Replace pre-cleaner after
every 25 hours of operation 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.
1. Pull up on air filter cover handle and
rotate towards engine.
2. Remove cover.
3. Carefully remove air filter cartridge and
pre-cleaner from base.
4. Clean base carefully to prevent debris
from falling into carburetor.
NOTE: If very dirty or damaged, replace
cartridge.
5. Place new pre-cleaner and cartridge
firmly in base.
6. Align tabs on cover with slots in blower
housing and replace cover.
7. Hook handle on cover and push down
on handle to close.
IMPORTANT: Petroleum solvents, such
as kerosene, are not to be used to clean
the cartridge. They may cause deterio­
ration of the cartridge. Do not oil car­
tridge. Do not use pressurized air to clean
cartridge.
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.
ENGINE COOLING SYSTEM
Debris may clog the engine’s air cool­
ing system. Remove blower housing and
clean area shown to prevent overheating
and engine damage.
Air Screen
Clean out chaff and debris
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
Clamp
Fuel Filter
20