Sears 917.25597 - Manual (Page 18)

CUSTOMER RESPONSIBILITBES
CLEAN AIR SCREEN (See Fig. 20)
The air screen must be kept free of dirt and chaff to prevQnt
engine damage from overheating. Clean with a wire brush
or compressed air to remove dirt and stubborn dried gum
fibers.
CLEAN ENGINE COOLING FINS
(See Fig. 20)
Remove any dust, dirt or oil from engine cooling fins to
prevent engine damage from overheating. Air guide covers
must be removed. Remove side panels and hood (See ‘TO
REMOVE HOOD AND GRILL ASSEMBLY” in the Service
and Adjustments section of this manual).
Your engine will, not run properly using a dirty air filter.
Clean the foam pre-cleaner element after every 25 hours of
operation or every season. Service paper cartridge every
100 hours or every season, whichever occurs first
Service air cleaner more often under dusty conditions.
• Remove knob(s) 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.
• Reinstall pre-cleaner over cartridge.
« Reinstall cover and secure with knob(s).
TO SERVICE CARTRIDGE
» Remove wing nuts and cartridge plate.
« Remove cartridge and clean by tapping gently on flat
surface.
• If very dirty, replace or wash in a nonsudsing detergent
and warm water solution. Rinse thoroughly with water
from inside out until water runs clear. Let cartridge dry
thoroughly before using.
» Reinstall cartridge plate, wing nuts, precleaner, cover
and secure with'knob(s).
IMPORTANT: PETROLEUM SOLVENTS, SUCH AS
KEROSENE, ARE NOT TO BE USED TO CLEAN THE
CARTRIDGE THEY MAY CAUSE DETERIORATION OF
THE CARTRIDGE. DO NOT OIL CARTRIDGE. DO NOT
USE PRESSURIZED AIR TO CLEAN OR DRY
CARTRIDGE,
MUFFLER
Inspect and replace 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 operation, whichever
comes first. Spark plug type and gap setting are shown in
“PRODUCT SPECIFICATIONS” on page 3 of this manual.
IN-LINE FUEL FILTER (See Fig. 22)
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 filter and plug fuel line
sections.
• Place new fuel filter in position in fuel line with arrow
pointing towards carburetor.
» Be sure there are no fuel line leaks and clamps are
properly positioned.
« Immediately wipe up any spilled gasoline.
18
CLEANING
o Clean engine, battery, seat, finish, etc. of ail 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 filter and
carburetor are cover ed to keep water out. Water in engine
can result in a shortened engine life.