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TROUBLESHOOTINGCHART
PROBLEM
CAUSE
• Build-up of grass, leaves
and trash under mower.
• Di_y air filter
. Low oil level/dirty oil.
• Faulty spark plug.
Loss of power
(Continued)
Excessive
vibration
Enginecontinues
to run when
operator leaves
seat with
attachment
clutch engaged
Poor cut - uneven
Mower blades will
not rotate
° 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
adjustmenL
. Engine valves out of
adjustment.
• Worn, bent or loose blade.
o 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.
o Worn/damaged mower
drive belto
° Frozen idler pulley.
• Frozen blade mandrel.
CORRECTION
• Clean underside of mower
housing.
• Clean/replace air filter
o 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 centeddepartmenL
• 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 centeddepartment.
• Replace blade, "tighten
blade bolt,
° Level mower deck.
• Clean underside of rnewer
housing.
• Replace blade mandrel,
• Clean around mandrels to
open vent holes,
• Remove obstruction.
- Replace mower drive belt,
. Replace idler pulley.
* Reptace blade mandrel.
29
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