Craftsman 917.273373 User Manual
Page 20
Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".
 
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.
¡MPORTANT: 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