Craftsman 917.257711 Owner's Manual page 29

TROUBLESHOOTING NTS
PROBLEM
Engine continues to run
when operator teavss seat
with attachment c_utch
engaged
Poor CUt - uneven
Mower blades wil! not
rotate
Poor grass discharge
Headlight(s) not working
(if so equipped)
Battery will not charge
Engine "backfires"
when turning engine
"OFF"
CAUSE
1. Faulty operator-safety presence control system.
!. 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, ]eaves, and trash around mandrels.
t. Obstruction in clutch mechanism.
2. Worn/damaged mower drive 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 tire air pressure.
6. Worn, bent or loose blade.
7. Buildup of grass, leaves and trash under mower.
8. Mower drive 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) burned out.
3. Faulty light switch.
4. Loose or damaged wiring.
5. Blown fuse.
1. Bad battery cell(s).
2. Poor cable connections.
3. Faulty regulator (if so equipped).
4, Faulty alternator.
1. Engine throttle control not set at "SLOW"
position for 30 seconds before stepping engine.
CORRECTION
!. Check wiring, switches and connections, tf not
corrected, contact an authorized service center/
department.
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.
1. Remove obstruction.
2. Replace mower drive be_t.
3. Replace idler 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 Made. Tighten blade bolt.
7. Clean underside of mower housing.
8. Replace mower drive belt.
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).
3. Check/replace light switch.
4. Check wiring and connections.
5. Replace fuse.
1. Replace battery.
2. Check/clean all connections.
3. Replace regulator.
4. Replace alternator.
1. Move throttle control to "SLOW" position and allow
to idle for 30 seconds before stopping engine.
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