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CLEAN AIR SCREEN (See Fig. 16)
CLEAN AIR INTAKE/COOLING
AREAS
Air screen must be kept free of dirt and chaff to prevent
engine damage from overheating° Clean with awire brush
or compressed air to remove dirt and stubborn dried gum
fibers
AIR FILTER
(See
Fig. 16)
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-cleaneroff
cartridge.
°
Wash it in liquid detergent and water..
°
Squeeze it dr,/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 cartridge_
NOTE: Do notwash the paper cartridge or'use pressurized
air, as this will damage the cartridge.
°
Reinstall the pre-cleaner (cleaned and oiled) over the
paper cartridge.
°
Reassemble air' cleaner, wing nut, cover and tighten
knob securely.
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°
MUFFLER
Inspectand replace corroded mufflerand 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,
18
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