Craftsman 917.27581 Owner's Manual page 29

TROUBLESHOOTING CHART:
See ap pro pri ate section in manual un less di rect ed to Sears service center
PROBLEM
Loss of power
Excessive
vibration
Engine dies when 1. Reverse operation system
tractor is shifted
into reverse
Engine continues 1. Faulty operator-safety
to run when
operator leaves
seat with attach-
ment clutch
engaged
Poor cut - uneven 1. Worn, bent or loose blade.
CAUSE
1. Cutting too much grass/too
fast.
2. Throttle in "CHOKE" position. 2. Adjust throttle control.
3. Build-up of grass, leaves
and trash under mower.
4. Dirty air fi lter.
5. Low oil level/dirty oil.
6. Faulty spark plug.
7. Dirty fuel fi lter.
8. Stale or dirty fuel.
9. Water in fuel.
10. Spark plug wire loose.
11. Dirty engine air screen/fi ns.
12. Dirty/clogged muffl er.
13. Loose or damaged wiring.
14. Carburetor out of adjustment. 14. See "To Adjust Car bu re tor"
15. Engine valves out of
adjustment.
1. Worn, bent or loose blade.
2. Bent blade mandrel.
3. Loose/damaged part(s).
(ROS) is not "ON" while
mower or other attachment
is engaged.
pres ence control system.
2. Mower deck not level.
3. Buildup of grass, leaves,
and trash under mower.
4. Bent blade mandrel.
5. Clogged mower deck vent
holes from buildup of grass,
leaves, and trash around
mandrels.
CORRECTION
1. Raise cutting height/reduce
speed.
3. Clean un der side of mower
housing.
4. Clean/replace air fi lter.
5. Check oil level/change oil.
6. Clean and regap or change
spark plug.
7. Replace fuel fi lter.
8. Empty fuel tank and refi ll tank
with fresh, clean gasoline.
9. Empty fuel tank and carbure-
tor, refi ll tank with fresh gas-
oline and replace fuel fi lter.
10. Connect and tighten spark
plug wire.
11. Clean engine air screen/fi ns.
12. Clean/replace muffl er.
13. Check all wiring.
in Service and Adjustments
section.
15. Contact a Sears or other
qualifi ed service center.
1. Replace blade.
Tighten blade bolt.
2. Contact a Sears or other
qualifi ed service center.
3. Tighten loose part(s).
Replace damaged parts.
1. Turn ignition key to
ROS "ON" position.
See Operation section.
1. Check wiring, switches and
connections. If not corrected,
contact Sears or other
qualifi ed service center.
1. Replace blade. Tighten
blade bolt.
2. Level mower deck.
3. Clean underside of mower
housing.
4. Contact a Sears or other
qualifi ed service center.
5. Clean around mandrels to
open vent holes.
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