Craftsman 917.270532 Owner's Manual page 28

TROUBLESHOOTING CHART
PROBLEM
Loss of power
CAUSE CORRECTION
• Cutting too much
grass/too fast.
• Throttle in "CHOKE"
position.
• 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.
plug wire.
• Dirty engine air screen/
fins.
• Dirty/clogged muffler.
• Loose or damaged
wiring.
• Carburetor out of
adjustment.
Excessive •
vibration
Engine continues
to run when oper-
ator leaves seat
with attachment
clutch engaged
Poor cut
uneven
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
holes from buildup of grass,
leaves, and trash around
mandrels.
• Set in "Higher Cut" position/
reduce speed.
• Adjust throttle control.
• 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 carbureto=
refill tank with fresh gasoline
and replace fuel filter.
• Connect and tighten spark
• 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.
Mower blades will • Obstruction in clutch • Remove obstruction
not rotate mechanism
28