Air Filter; Engine Oil Filter; Muffler; Spark Plugs - Craftsman EZ3 917.258591 Owner's Manual

CUSTOMER R IBILITIES
AIR FILTER (See Fig. 17)
Your engine will not run properly using a dirty air filter°
Clean the foam pre-cleaner after every 25 hours of opera-
tion 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.
• Remove knob and cover.
° Remove wing nut and air cleaner from base_
TO SERVICE PRE-CLEANER
• Slide foam pre-cleaner off cartridge
• Wash it in liquid detergent and water.
• Squeeze it dry in a clean cloth. Allow it to dry.
• Saturate it in engine oil. Wrap it in clean, absorbent
cloth and squeeze to remove excess oil.
TO SERVICE CARTRIDGE
• Replace a dirty, bent, or damaged cartridgeo
NOTE: Do not wash the papercartridge or'use pressurized
air, as this will damage the cartridge.
= Reinstall the pre-cteaner (cleaned and oiled) over the
paper'cartridge.
• Reassemble air cleaner, wing nut, cover and tighten
knob secureiy_
CLEAN AIR INTAKE/COOLING AREAS
To insure proper' cooling, make sure the grass screen,
cooling fins, and other external 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_
ENGINE OIL FILTER (See Fig. 18)
Replace the engine oil filter every season or every otheroil
change if the tractor is used more than 100 hours in one
year'.
° Drain oil from engine crankcase (See 'TO CHANGE
ENGINE OIL" in this section of this manual, through
step remove drain plug).
- Remove oil filter' and wipe off filter adapter.
° Apply a thin coating of new engine oil to the rubber
gasket on replacement oil filter,
• install replacement oil filter on filter adapter° Turn oil
filter clockwise until rubber gasket contacts the filter
adapter, then tighten filter an additional 1/2 turn.
° Fill crankcase with new'oit (See 'q'O CHANGE EN-
GINE OIL" in this section of this manual). For approxi-
mate capacity see "PRODUCT SPECIFICATIONS" on
page 3 of this manual.
• Start the engine and check for oil leaks. Correct any
leaks before placing engine into futt operation.
I
FIG. 18
MUFFLER
Inspect and reptace corroded muffler and spark arrester (if
equipped) as it could create a fire hazard and/or damage.
SPARK PLUGS
Replace spark plugs at the beginning of each mowing
season or after every 100 hours of use, whichever comes
first. Spark plug type and gap setting is shown in "PROD-
UCT SPECIFICATIONS" on page 3 of this manual.
IN-LINE FUEL FILTER (See Fig. 19)
The fuel filter should be replaced once each season_ If fuel
filter becomes clogged, obstructing fuel flow to carburetor,
replacement is required.
° With engine cool, remove fitter and plug fuel line
sections.
* Place new fuel filter in position in fuel line with arrow
pointingtowards carburetor_
• Be sure there are no fuel line leaks and clamps are
properly positioned.
° Immediately wipe up any spilled gasoline,,
CLAMP
FUE__ CLAMP
FILTER
FIG, 19
2O
CLEANING
• Clean engine, battery, seat, finish, etc. of all foreign
matter'.
= Keep finished surfaces and wheels free of all gasoline,
oil, etc_
• Protect painted surfaces with automotive type wax.
We do not recommend using a garden hose to clean your
tractor unless the electrical system, muffler, air fitter and
carburetor are covered to keep water ouL Water in engine
can result in a shortened engine lifeo