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TROUBLESHOOTING CHART
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PROBLEM CAUSE
Loss of power * Faulty spark plug.
Continued
• Dirty fuel filter.
• Stale or dirty fuel.
• Water in fuel.
• Spark plug wire loose.
Excessive
vibration
Enginecontinues
to run when
operator leaves
seat with attach-
ment clutch
engaged
Poorcut-uneven
Mowerbladeswill
not rotate
Poor grass
discharge
• Dirty engine air screen/fins.
• Dirty/clogged muffler.
• Loose or damaged widng.
• Carburetor out of adjustment.
I• Engine valves out of
adjustment.
• Worn, bent or loose blade.
• Bent blade mandrel.
Loose/damagedpart(s).
• Faulty operator-safety
presence control system.
• Worn, bent or loose blade.
• Mower deck not level.
• Buildup of grass, leaves, and
trash under mower.
• Bent blade mandrel.
• Clogged mower deck vent
holes from buildup of grass,
leaves, and trash around
mandrels.
• Obstruction in clutch
mechanism.
• Worn/damaged mower drive
belt.
• Frozen idler pulley.
• Frozen blade mandrel.
• Engine speed too slow.
• Travel speed too fast.
• Wet grass.
• Mower deck not level.
• Low/uneven tire air
pressure.
34
CORRECTION
• Clean and regap or change
spark plug.
• Replace fuel filter.
• Drain fuel tank and refill with
fresh gasoline.
• Drain fuel tank and carburetor,
refill tank with fresh gasoline
and replace fuel filter.
• Connect and tighten spark
plug wire.
• Clean engine air screen/fins.
• Clean/replace muffler.
• Check all wiring.
• See "To Adjust Carburetor"
in Service Adjustments section
• Contact an authorized
service center/depadment.
• Replace blade. Tighten blade
bolt.
• Replace blade mandrel.
• Tighten loose part(s).
Replace damaged parts.
• Check wiring, switches and
connections. If not corrected,
contact an authorized service
center/department.
• Replace blade. Tighten blade
bolt,
• Level mower deck.
• Clean underside of mower
housing.
• Replace blade mandrel.
• Clean around mandrels to
open vent holes.
• Remove obstruction.
• Replace mower drive belt.
• Replace idler pulley.
• Replace blade mandrel.
• Place throttle control in "FAST"
position.
• Shift to slower speed.
• Allow grass to dry before
mowing.
• Level mower deck.
• Check tires for proper air
pressure.
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