Craftsman 917.250480 Owner's Manual page 29

TROUBLESHOOTING POINTS
PROBLEM
Engine continues to run
when operator leaves seat
with attachment clutch
engaged
Poorcut-uneven
Mower blades will not
rotate
Poor grass discharge
Headfight(s) not working
(if so equipped)
Battery will not charge
Engine "backfires"
when turning engine
"OFF"
CAUSE
1. Faulty operator-safety presence control system.
1. Worn, bent or _oose blade.
2. Mower deck notlevet.
3. Buildup of grass, Ieaves, and trash under mower.
4. Bent blade mandrel
5. Ctogged mower deck vent holes from buildup of
grass, leaves, and trash around mandrels,
t. Obstruction in ciutch mechanism.
2. Worn/damaged mower drive bell
3, Frozer_ idler pulley.
4. Frozen blade mandrel
t. Engine speed too slow,
2. Travelspeed too fast.
3. Wet grass.
4. Mower deck notfevet.
5. Low/uneven tire air pressure.
6. Worn, bent or _oose 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.
t, Bad batterycelI(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 stopping engine.
CORRECTION
1. Check wiring, switches and connections. If 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 beIt.
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 blade. 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.
tl. 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 alt connections.
3. Replace regulator.
4. Reptace alternator,
1, Move throttle control to "SLOW" position and aitow
to idle for 30 seconds before stopping engine,
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