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TROUBLESHOOTING
PROBLEM
Loss of power
Excessive
vibration
CHART
CAUSE
1. Cutting too much grass/too
Enginecontinues
to run
when operator
leaves seat with
with attachment
clutch engaged
Poorcut-uneven
2,
3.
4.
5.
6.
7.
8.
9.
fast.
Throttle in "CHOKE"
position.
Build-up of grass, leaves
3.
and trash under mower.
Dirty air filter,
i 4.
Low oil level/dirty oil.
5.
Faulty spark plug.
6.
Dirty fuel filter.
7.
Stale or dirty fuel.
8.
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. Worn, bent or loose blade.
j2. Bent blade mandrel.
3. Loose/damaged part(s).
1. Faulty operator-safety
presence control system.
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
holes from buildup of
grass, leaves, and trash
around mandrels.
CORRECTION
1. Set in "Higher Cut" position/
reduce speed.
2. Adjust throttle control.
Clean underside of mower
housing.
Clean/replace
air filter.
Check oit level/change oil.
Clean and regap or change
spark plug.
Replace fuel filter.
Drain fuel tank and refill with
fresh gasoline.
9. Drain fuel tank and carbure
tor, 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.
1. Replace
blade.
Tighten blade bolt.
2. Replace blade mandrel.
3. Tighten loose part(s).
Replace damaged parts.
1. Check wiring, switches
and
connections.
If not
contact a Sears or other
qualified service center.
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.
29
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