Craftsman 917.272420 User Manual
Page 31
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TROUBLESHOOTING CHART
PROBLEM
CAUSE
CORRECTION
Loss of power
3. Build-up of grass, leaves
3. Clean underside of mower
(continued)
and trash under mower.
housing.
4. Dirty air filter.
4. Clean/replace air filter.
5. Low oil level/dirty oil.
5. Check oil level/change oil.
6. Faulty spark plug.
6. Clean and regap or change
spark plug.
7. Dirty fuel filter.
7. Replace fuel filter.
8. Stale or dirty fuel.
8. Drain fuel tank and refill
with fresh gasoline.
9. Water in fuel.
9. Drain fuel tank and
carburetor, refill tank with
fresh gasoline and replace
fuel filler.
10. Spark plug wire loose.
10. Connect and tighten spark
plug wire.
11. Dirty engine air screeiVfins.
11,Clean engine air screen/
fins.
12.Dirty/cIogged muffler.
12.Clean/replace muffler.
13. Loose or damaged wiring.
13. Check all wiring.
14, Carburetor out of
14,See “To Adjust Carburetor”
adjustment.
in Service Adjustments
section.
15. Engine valves out of
15. Contact a Sears or other
adjustment.
qualified service center.
Excessive
1, Worn, bent or loose blade.
1, Replace blade.
vibration
Tighten blade bolt.
2. Bent blade mandrel.
2. Replace blade mandrel.
3. Loose/damaged part(s).
3. Tighten loose part(s).
Replace damaged parts.
Engine continues
1. Faulty operator-safety
1, Check wiring, switches and
to run when
presence control system.
connections. If not corrected.
operator ieaves
contact a Sears or other
seat with
attachment
clutch engaged
qualified service center.
Poor cut - uneven 1. Worn, bent or loose blade.
1. Replace blade. Tighten
blade bolt.
2. Mower deck not level.
2. Level mower deck.
3. Buildup of grass, leaves.
3. Clean underside of mower
and trash under mower.
housing.
4. Bent blade mandrel.
4. Replace blade mandrel.
5. Clogged mower deck vent
5. Clean around mandrels to
from build-up of grass,
leaves, and trash around
mandrels.
open vent holes.
Mower blades will 1. Obstruction in clutch
1. Remove obstruction.
not rotate
mechanism.
2. Worn/damaged mower
drive belt,
2. Replace mower drive belt.
3. Frozen idler pulley.
3. Replace idler pulley.
4. Frozen blade mandrel.
4. Replace blade mandrel.
31