Craftsman 917.271731 Owner's Manual page 29

TROUBLESHOOTING CHART
PROBLEM
Loss of power
Excessive
vibration
CAUSE
1.
2,
3,
4_ Dirty air filter,
5,, Low oil level/dirty oil,
6. Faulty spark plug
7_
8,
9,
Cutting too much grassttoo
fasL,
Throttle in "CHOKE"
position.
Build-up of grass, leaves
and trash under mower_
Dirty fuel filter,,
Stale or dirty fuel
Water in fuel
Enginecontinues
to run
when operator
leaves seat with
with attachment
clutch engaged
Poor cut - uneven
10,Spark plug wire loose,,
t 1, Dirty engine air screen/fins_
12. Dirtylclogged muffler.
13, Loose or damaged wiring,
14,.Carburetor out of
adjustment.,
15, Engine valves out of
adjustmenL
1. Worn, bent or loose blade,
2, Bent blade mandrel.
3_ Loosetdamaged part(s).
l r Faulty operator-safety
presence control system,,
,.
2
3_
_4.
5.
Worn, bent or loose blade,
Mower deck not level,
Buildup of grass, leaves,
and trash under mower,
Bent blade mandrel,
Clogged mower deck vent
holes from buildup of
grass, leaves, and trash
around mandrels.
CORRECTION
I,, Set in "Higher Cut" position/
reduce speed,
2_ Adjust throttle control,,
3, Clean underside of mower
housing,
4. Cleantreplace air filter:,
5, Check oil leveifchange oii_
6. Clean and regap or change
spark plug.
7. Replace fuel filter.
8, Drain fuel tank and refill with
fresh gasoline_
9_ Drain fue! tank and carbure
tor, refill tank with fresh
gasoline and replace fuel
filter_
t0oConnect and tighten spark
plug wire°
l1_Clean engine air screenlfins,,
12,Cleanlreplace 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 boll
2. Replace blade mandrel,
3. Tighten loose part(s).
Replace damaged pads.
Check wiring, switches and
connections, If not
contact a Sears or other'
qualified service center,
1. Replace blade Tighten
blade boll
2. Level mower deck
3_ Clean underside of mower
housing
4 Replace blade mandrel,,
5, Clean around mandrels to
open vent holes,
29