Craftsman 917.272760 Owner's Manual page 31

Lawn tractor 18.0 hp,42" mower electric start automatic transmission
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TROUBLESHOOTING
CHART:
See appropriate
section
in manual
unless
directed
to Sears service
center
PROBLEM
CAUSE
CORRECTION
Loss of power
3. Build-up of grass, leaves
3. Clean underside of mower
and trash under mower.
4. Dirty air filter.
5. Low oil level/dirty oil.
6. Faulty spark plug.
7. Dirty fuel filter.
8. Stale or dirty fuel.
9.
Water in fuel.
housing.
4. Clean/replace
air filter.
5. Check oil level/change oil.
6. Clean and regap or change
spark plug.
7. Replace fuel filter.
8. Drain fuel tank and refill
with fresh gasoline.
9. Drain fuel tank and
carburetor, refill tank with
fresh gasoline and replace
fuel filter.
10. Connect and tighten spark
plug wire.
11. Clean engine air screen/
fins.
12. Clean/replace
muffler.
13.Check all wiring.
14. See "To Adjust Carburetor"
in Service and Adjustments
section.
15.Contact a Sears or other
qualified service center.
1. Replace blade.
Tighten blade bolt.
2. Contact a Sears or other
qualified service center.
3. Tighten loose part(s).
Replace damaged parts.
1. Check wiring, switches and
connections.
If not corrected,
contact a Sears or other
qualified service center.
1. Replace blade. Tighten
blade bolt.
2. Level mower deck.
3. Clean underside of mower
housing.
4. Contact a Sears or other
qualified service center.
5. Clean around mandrels to
open vent holes.
1. Remove obstruction.
i(continued)
Excessive
vibration
Engine continues
ito run when
3perator
leaves
seat with
attachment
¢lutch
engaged
10. Spark plug wire loose.
11. Dirty engine air screen/fins.
12. Dirty/clogged
muffler.
13. Loose or damaged wiring.
14. Carburetor out of
adjustment.
15. Engine valves out of
adjustment.
1. Worn, bent or loose blade.
2. Bent blade mandrel.
3. Loose/damaged
part(s).
1. Faulty operator-safety
presence control system.
.
2.
3.
4.
5.
Worn, bentorloose
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.
Poorcut-uneven
Mower blades will
1. Obstruction
in clutch
inot rotate
mechanism.
31

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