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TROUBLESHOOTING
CHART
PROBLEM
i_';
CAUSE
CORRECTION
• Faulty spark plug'
-' Clean and regap or change
• Dirty fuel filter.
• Stale or dirty fuel.
• Water in fuel.
• Spark plug wire loose.
Lo.,s_s_.f power (Cont'd)
Excessive vibration
Engine continues to
run wb_ _ ]_0_a_tor
leaves seat with at
tachment clutch
engaged
Poor cut - uneven
Mower blades will not
rotate
-.
Poor grass discharge
• Dirty engine air screen/fins.
• Dirty/dogged 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 controlsystem.
• 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 dutch 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.
spark plug.
• Replace fuel filter.
• Drain fuel tank and refill with
• fresh gasoline.
•. Drain fuel tank and carburetor,
refilltank with fresh gasolineand
replace fuel filter.
• Connect and tighten spark plug
wire.
• Clean engine air screen/fins.
• Clean/replace muffler.
• Check all wiring.
• See "ToAdjust 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 con-
nections. If not
corrected, contact an authorized
service center/
department.
• Replace blade. Tighten blade
boll
• Level mower deck.
• Clean underside of mower hous-
ing.
• Replace blade mandrel.
• Clean around mandrels to open
vent holes.
• Remove obstruction.
• Replace mower ddve belt.
• Replace idler pulley.:
• Replace blade mandrel.
• Place throttle controlin "FAST"
position.
• Shin to slower speed.
• Allow grass to dry before mow-
ing.
• Level mower deck.
• Check tires for proper air pres-
sure.
• Replace/sharpen blade. "13ghten
blade bolt.
31
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