Maintenance Instructions; Air Cleaner; Cooling System - Sears 917.25752 Owner's Manual

maintenance
instructions
air cleaner
CAUTION: If air cleaner becomes too dirty, engine
will not receive sufficient air to run properly. Symp-
toms. Loss of power, flooding, hard to start and over-
heating.
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WING NUT
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COVER
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POLYURETHANE
PRE-CLEANER
HOSE
INTAKE
FIG. 1'3
This engine is equipped with a paper element and
'J
polyurethane precleaner that must be removed, clean-
ed and oiled every 25 hours of operation, or more
under extremely dusty conditions.
1. WASH
2 SQUEEZE DRY
3. COAT WITH OIL
4. INSTALL
FIG. 14
To clean pre-cleaner wash in water and detergent
referring to Figure 14. Remove excess water by
squeezing like a sponge and allow to dry tho-
roughly. Distribute three tablespoons of SAE 30
eng ine
0
i I even Iy around the pre-c leaner. Knead
into and wring excess oi I from pre-cleaner.
2. Depending on conditions in which the tractor is
operating, the inner paper element should be re-
placed whenever it becomes excessively dirty.
4824R·7.1.74
- 8 -
CAUTION: NEVER RUN THE ENGINE WITH
THE AIR CLEANER REMOVED. DIRT WILL
ENTER THE ENGINE AND SCORE THE CY·
LlNDERS.
cooling system
CLEAN OUT
CHAFF AND DIRT
FIG. 15
COOLING SYSTEM: Check and clean cooling fins at
least every 50 hours. Remove any dust, dirt o'r oil
which may have accumulated. Remove any chaff from
rotating and stationery blower screen.
CAUTION: Plugged or clogged cooling fins or blower
screens can cause overheating and engine damage.
THIS TRACTOR HAS AN AIR COOLED
Et~a
GINE. AIR MUST BE ABLE TO CIRCULATE
FREELY AROUND THE ENGINE, THROUGH
THE SCREEN GUARD AND GUARD (ROTARY
SCREEN), AND OVER THE FINS OF THE
CYLINDER BLOCK_ KEEP THESE AREAS
FREE OF ACCUMULATED DIRT AND TRASH
OR THE ENGINE WILL OVERHEAT AND
RESULT IN DAMAGE TO ENGINE ..