33
TROUBLESHOOTING CHART:
See appropriate section in manual unless directed to Sears service center
PROBLEM
CAUSE
CORRECTION
Loss of power
1
Cutting too much grass/too fast.
1
Raise cutting height/reduce speed.
2
Throttle in cold weather starting
position (
).
2
Move throttle control to fast
position (
).
3
Build-up of grass, leaves and
trash under mower.
3
Clean underside of 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 & regap or change spark plug.
7
Dirty fuel filter.
7
Replace fuel filter.
8
Stale or dirty fuel.
8
Empty fuel tank and refill tank with
fresh, clean gasoline.
9
Water in fuel.
9
Empty fuel tank and carburetor,
refill tank with fresh gasoline and
replace fuel filter.
10
Spark plug wire loose.
10
Connect & tighten spark plug wire.
11
Dirty engine air screen/fins.
11
Clean engine air screen/fins.
12
Dirty/clogged muffler.
12
Clean/replace muffler.
13
Loose or damaged wiring.
13
Check all wiring.
14
Engine valves out of adjustment.
14
Contact a Sears or other qualified
service center.
Excessive vibration
1
Worn, bent or loose blade.
1
Replace blade. Tighten blade bolt.
2
Bent blade mandrel.
2
Contact a Sears or other qualified
service center.
3
Loose/damaged part(s).
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.
CAUTION: DO NOT
operate machine until
problem is corrected.
Poor cut - uneven
cutting
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, and
trash under mower.
3
Clean underside of mower
housing.
4
Bent blade mandrel.
4
Contact a Sears or other
qualified service center.
5
Clogged mower deck vent from
build-up of grass, leaves, and
trash around mandrels.
5
Clean around mandrels to
open vent holes.
Summary of Contents for 917.20408
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