Troubleshootinq ;Chart - Craftsman 917.270961 Owner's Manual

TROUBLESHOOTINq
PROBLEM
Loss of power
(Continued)
Excessive
vibration
;CHART
CAUSE
•Build-upofgr_s, leaves
andtmshundermowe_
Enginecontinues
to run when
operator leaves
seat with
attachment
clutch engaged
Poor cut - uneven
Mower blades will
not rotate
• 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.
i
• Obstruction in clutch
mechanism. _
• Worn/damaged mower
drive belt.
• Frozen idler pulley.
• Frozen blade mandrel.
CORRECTION
i
• Clean underside of mower
housing.
• Clean/replace air filter.
• Check oil level/change oil.
• Clean and regap or chang(
spark plug.
• Replace fuel filter.
• Drain fuel tank and refill wit
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.
• Clead/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 an(
connections. If not correcte,
contact an authorized
service centeddepadment.
• 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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