Craftsman ELECTRIC START 42" MOWER AUTOMATIC LAWN TRACTOR 944.602951 Owner's Manual page 26

TROUBLESHOOTING POINTS
PROBLEM
Engine conUnues to run
when operator leaves
seat with attachment
clutch engaged
Poor cut - uneven
Mower blades will not
rotate
Poor grass discharge
Headlight(s) not working
(if so equipped)
Battery will not charge
Loss of drive
Engine "backfires"
when turning engine
"OFF"
CAUSE
1. Faulty opemfor-safotypresence 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 desk vent holes from buildup of
grass, leaves, and ttash around mandrels.
1. Obstruction in clutch mechanism.
2, Worrddamaged mower ddve belt.
3. Frozen idler pulley.
4. Frozen blade mandrel.
1. Engine speed too slow.
2. Travel speed too fast.
3. Wet grass.
4. Mower deck not level.
5. Low/uneven _re air pressure.
6. Worn, bent or loose blade.
7, Buildup of grass, leaves and trash under mower.
8. Mower ddve belt worn.
9. Blades improperly installed.
10. Improper blades used.
11. Clogged mower deck vent holes from buildup of
grass, leaves, and trash around mandrels.
1. Switch is "OFF'.
2. Bulb(s) or lamp(s) bumed out.
3. Faulty light switch.
4. Loose or damaged widng.
5, Blown fuse.
1. Bad battery cell(s).
2. Poor cable connec_ons.
3. Faulty regulator (if so equipped).
4. Faulty alternator.
1. Freewheel control in "disengaged" position.
2. Motion ddve belt wom, damaged, or broken.
3. Air trapped in transmission during shipment
or servicing.
1.
Engine throttle contro_ not set at "SLOW"
position for 30 seconds before stopping engine.
CORRECTION
1. Check widng, switches and conneclJons. If not
corrected, contact an authorized service center/
departmanL
1. Replace blade. Tightan blade bolt.
2. Level mower deck.
3. Clean underside of mower housing.
4. Replace blade mandrel.
5, Clean around mandrels to open vent holes.
1. Remove obstruction.
2. Replace mowerddve bell
3. Replaceidler pulley.
4. Replace blade mandrel.
1. Place throttle control in =FAST" position.
2. Shift to slower speed.
3. Allow grass to dry before mowing.
4. Level mower deck.
5. Check tires for proper air pressure.
6. Replace/sharpen blade. Tighten blade bolt.
7. Clean underside of mower housing.
8. Replace mower drive bell
9. Reinstall blades sharp edge down.
10. Replace with blades listed in this manual.
11. Clean around mandrels to open vent holes.
1. Turn switch "ON'.
2. Replace bulb(s) or lamp(s).
3. Check/replace light switch.
4. Check widng and connections.
5. Replace fuse.
1. Replace battery.
2. Check/claan all connections.
3. Replace regulator.
4. Replace alteroak_r.
1. Place freewheel control in =engaged" position.
2. Replace motion ddve belt.
3. Purge transmission.
1. Move throt_e control to "SLOW* position and allow
to idle for 30 seconds before stopping engine.
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