Craftsman 3One 917.252590 Owner's Manual page 28

TROUBLESHOOTING POINTS
PROBLEM
Engine continues to run
when operator leaves seat
with attachment clutch
engaged
Poor cut - uneven
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Mower blades will not
rotate
Poor grass discharge
Headlight(s) not working
(if so equipped)
Battery will not charge
Tractor "creeps" with
motion control lever in
"neutral" position
(Fender shift models only)
Loss of drive
Engine "backfires"
when turning engine
"OFF"
CAUSE
1 Faulty operator-safety presence control system
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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 hales from buildup of
grass, leaves, and trash around mandrels,
1 Obstruction in clutch mechanism.
2 Worn/damaged mower ddve belt
3, Frozen idler pulley,
4 Frozen blade mandret
1, Engine speed too slow
2 Travel speed too fast,
3, Wet grass,.
4 Mower deck not level
5 Low/uneven tire air pressure
6 Worn, banter loose blade,
7 Buildup of grass, ]eaves and trash under mower
8 Mower ddve bait worn,
9 Blades improperly instalJed
10 improper bladesused
11_ Clogged mower deck vent holes from buildup of
grass, leaves, and trash around mandrels
1 Switch is "OFF"
2, Bulb(s) burned out
3 Faulty fight switch
4 Loose or damaged widng
5 Blown fuse
1. Bad battery cell(s)
2 Poor cable connections
3 Faulty regulator (if so equipped)
4. Faulty alternator,
1 Motion control lever is out of adjustment,
1. Freewheel control in "disengaged" position
2 Motion drive belt worn, damaged, or broken
3. Air trapped in transmission during shipment
or servicing.
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1, Engine throttle control not set at "SLOW"
position for 30 seconds before stopping engine
CORRECTION
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1, Check wiring, switches and connections, If not
corrected, contact an authorized service center/
department
1, Reptace blade Tighten bJade bo_t
2 Level mower deck,
3 Clean underside of mower housing
4, Replace blade mandre_
5 Cieen around mandrels to open vent holes
1, Remove obstruction
2 Replace mower drive bait
3 Replace idler pulley_
4 Replace blade mandrel,
1 Place throttle control in "FAST" position
2 Shift to slower speed.
3 Altow grass to dry before mowing
4. Level mower deck
5 Check tires for proper air pressure
6 Reptacetsharpen blade Tighten blade bolt
7 Clean underside of mower housing
8 Replace mower drive belt
g, Reinstall blades sharp edge down
10 Reptace with blades listed in this manual
11 Clean around mandrels to open vent holes
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I Turn switch "ON"
2 Replace bulb(s).
3 Check/replace light switch
4 Check wiring and connections
5 Replace fuse
I Repface battery,.
2., Check/clean all connections,
3 Replace regulator,
4, Replace alternator
1 Adjust motion control lever
1 Place freewheel control in "engaged" position.
2. Replace motion drive bait,
3. Purge transmission
1, Move throttle control to "SLOW" position and altow
to idle for 30 seconds before stopping engine,
28