Problem, Cause, Correction – Craftsman DYT 4000 917.273642 User Manual
Page 31: Excessive, Poor cut - uneven, Mower blades will not rotate
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TROUBLESHOOTING CHART:
See appropriate section in manual unless directed to Sears service center
PROBLEM
CAUSE
CORRECTION
Loss of power
(continued)
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.
5. Check oil level/change oil.
6. Clean and regap or change
spark plug.
7. Replace fuel filter.
8. Empty fuel tank and refill tank
with fresh, clean gasoline.
9. Empty fuel tank and carbure
tor, refill tank with fresh gas
oline and replace fuel filter.
10. Connect and tighten spark
plug wire.
11 .Clean engine air screen/fins.
12. Clean/replace muffler.
13. Check ail wiring.
14.See “To Adjust Carburetor”
in Service and 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. Contact a Sears or other
qualified service center.
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. Contact a Sears or other
qualified service center.
5. Clean around mandrels to
open vent holes.
Mower blades will
not rotate
1
.
2
.
3.
4.
Obstruction in clutch
mechanism.
Worn/damaged mower drive
belt.
Frozen idler pulley.
Frozen blade mandrel.
1. Remove obstruction.
2. Replace mower drive belt.
3. Replace idler pulley.
4. Contact a Sears or other
qualified service center.
31