Craftsman 917.25156 Owner's Manual page 30

TROUBLESHOOTING POINTS ......
PROBLEM
Engine continues 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 operator-safety presence control system,,
1,. Wom, 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, leaves, and trash around mandre?s.
1,. Obstruction In clutch mechanism.
2. Worn/damaged mower drive bait
3_ Frozen idler pulley,,
4, Frozen blade mandrel.
t.. 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 ddve belt worn,
9. Blades Improperly instai?ed,
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_
CORRECTION
Check wiring, swltches and connections1. If not
corrected, contact an authorized service center/
depadment.
1, Replace blade, Tighten blade bolt,
2. Level mower deck.
3 Clean underside of mower housing,,
4. Replace b?ademandrel.
5, Clean around mandrels to open vent holes,
1 Bad battery carl(s).
2, Poor cable connections°
3. Fautty regulator (if so equipped)
4, Faulty alternator.
1. Remove obstruction_
2 Replace mower drive bell
3 Replace idlezpulley_
4, Replace blade mandrel
1,, Freewheel control in "disengaged" position,
2, Motion drive belt worn, damaged oz broken
3, Air trapped In transmission during shpment
or servicing.
Engine thro_e control not set at "SLOW"
position for 30 seconds before stopping engine,
I. Place throttle control in "FAST" position.
2. Shift to slower speed,
3, Allow grass to dry before mowlng_
4, Level mower deck
5, Check tires for proper air pressure.
6. Replace/sharpen bEade. Tighten blade bolt,
7_ Clean underside of mower housing_
8,. Replace mower drive betL
9, Reinstall blades sharp edge down.
10° Replace with blades listed in this manual°
11. Clean around mandre?s to open vent holes
1_ Turn switch "ON".
2, Replace bulb(s),
3,, Cheek/replace light switch,
4 Check wiring and connections.
5_ Replace fuse,
1,. Replace battery.
2. Check/clean a_lconnections,
3 Replace regulator.
4 Replace altematoro
1o Place freewheel control in "engaged" position
2. Replace motion drive belt.
3, Purge transmission,
Move throttiecontrolto "SLOW"position andallow
to idlefor 30 seconds before stopping engine,
30