Craftsman 917.275021 - Manual (Page 34)

TROUBLESHOOTING CHART
PROBLEM CAUSE CORRECTION
Loss of power 1. Cutting too much grass/too
fast.
2. Throttle in “CHOKE"
position.
3. Build-up of grass, leaves
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.
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. Set in “Higher Cuf position/
reduce speed.
2. Adjust throttle control.
3. Clean underside of mower
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 Adjustments
section.
15. Contact a Sears or other
qualified service center.
Excessive
vibration
1. Worn, bent or loose blade.
2. Bent blade mandrel.
3. Loose/damaged part(s).
1. Replace blade.
Tighten blade bolt.
2. Replace blade mandrel.
3. Tighten loose part(s).
Replace damaged parts.
Engine continues
to run when
operator leaves
seat with
attachment
clutch engaged
1. Faulty operator-safety
presence control system.
1. Check wiring, switches and
connections. If not corrected,
contact a Sears or other
qualified service center.
Poor cut - uneven 1. Worn, bent or loose blade.
2. Mower deck not level.
3. Buildup of grass, leaves,
and trash under mower.
4. Bent blade mandrel.
5. Clogged mower deck vent
from build-up of grass,
leaves, and trash around
mandrels.
1. Replace blade. Tighten
blade bolt.
2. Level mower deck.
3. Clean underside of mower
housing.
4. Replace blade mandrel.
5. Clean around mandrels to
open vent holes.
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