Troubleshooting - Craftsman EZ3 917.270912 Owner's Manual

TROUBLESHOOTING CHART
CAUSE CORRECTION
PROBLEM
Lossofpower
Excessive vibration
Engine continues
to run when opera-
tor leaves seat with
attachment clutch
engaged
Poor cut - uneven
• Cutting too much grass/too
fast.
• Throttle in "CHOKE" posi-
tion.
• 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 adjust- •
ment.
• Engine valves out of ad- •
justment.
• Worn, bent or loose blade. •
• Bent blade mandrel. •
• Loose/damaged part(s). •
• Faulty operator-safety pres- •
ence 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 carbure-
tor, refill tank with fresh gaso-
line 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 and Adjustments
section.
Contact an authorized service
center.
Replace blade. Tighten blade
bolt.
Replace blade mandrel.
Tighten loose part(s). Re-
place damaged parts.
Check wiring, switches and
connections. If not
corrected, contact an autho-
rized service center.
Replace blade. Tighten blade
bolt.
Level mower deck.
Clean underside of mower
housing.
Replace blade mandrel.
Clean around mandrels to
open vent holes.
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