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PROBLEM
Loss of power
(cont'd)
TROUBLESHOOTING CHART
CAUSE
• Faulty spark plug.
• Dirty fuel filter.
• Stale or dirty fuel.
• Water in fuel.
Excessive vibration
Engine continues to
run when operator
leaves seat with at
tachment clutch
engaged
Poor cut uneven
Mower blades will not
rotate
Poor grass discharge
Spark plug wire loose.
• Dirty engine air screen/fins.
• Dirty/clogged muffler.
• Loose or damaged wiring.
• Carburetor out of adjustment.
• Engine valves out of adjust-
ment.
• Worn, bent or loose blade.
• Bent blade mandrel.
• Loose/damaged part(s).
• Faulty operator-safety pres-
ence 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 mecha-
nism.
• 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.
• Worn, bent or loose blade.
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.
i • Clean engine air screen/fins.
• Clean/replace muffler.
• Check all wiring.
• See "To Adjust Carburetor" in
Service and Adjustments
section.
• Contact an authorized service
center.
• 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 autho-
rized 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.
• Rep,-_e mower drive belt.
• Replace idler pulley.
• Replace blade mandrel.
• Place throttle control in "FAST"
position.
• Shift to slower speed.
• Allow grass to dry before mow-
ing.
• Level mower deck.
• Check tires for proper air pres-
sure.
• Replace!sharpen blade. Tighten
blade bolt.
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