Sears 917.257552 - Manual (Page 18)

CUSTOMER RESPONSIBILITIES
CLEAN AIR SCREEN (See Rg. 17)
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 stubborn dried gum
fibers.
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 ail 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 RLTER (See Rg. 18)
Replace the engine oil filter every season or every other oil
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 piug).
» 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 oil (See ‘TO 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 oi! leaks. Correct any
leaks before placing engine into full operation.
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
occurs first. Spark plug type and gap setting are shown in
“PRODUCT SPECIFICATIONS" on page 3 of this manual.
IN-LINE FUEL RLTER (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 filter and plug fuel line
sections.
0 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.
CLEANING ^
« Clean engine, battery, seat, finish, etc. of all foreign
matterl
® Keep finished surfacbs 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 covered to keep water out. Water in engine
can result in a shortened engine life.
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