TROUBLESHOOTING
CHART
PROBLEM
Loss of power
(Continued)
Excessive
vibration
Engine continues
to run when
operator
leaves
seat with
attachment
clutch engaged
Poor cut - uneven
Mower blades will
not rotate
CAUSE
CORRECTION
• Build-up
of grass, leaves
and trash under mower.
• Dirty air filter.
• Low oil level/dirty
oil.
• Faulty spark plug.
• Dirty fuel filter.
• Stale or dirty fuel.
• Water in fuel.
• Spark
plug wire loose.
• Dirty engine
air screen/fins.
• Dirty/clogged
muffler.
• Loose
or damaged
wiring.
• Carburetor
out of
adjustment.
• Engine valves
out of
adjustment.
• Worn, bent or loose blade.
• Bent blade
mandrel.
• Loose/damaged
part(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
from build-up
of grass,
leaves,
and trash around
mandrels.
• Obstruction
in clutch
mechanism.
• Worn/damaged
mower
drive belt.
• Frozen idler pulley.
• Frozen blade mandrel.
• Clean underside
of mower
housing.
• Clean/replace
air filter.
• Check
oil level/change
oil.
• Clean
and regap or change
spark plug.
• Replace
fuel filter.
• Drain fuel tank and refill with
fresh
gasoline.
• Drain fuel tank and carbure-
tor, 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/department.
• 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.
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