Craftsman 917.271861 Owner's Manual page 32

Lawn tractor 21.0 hp, 42" mower electric start automatic transmission
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TROUBLESHOOTING
CHART:
See appropriate
section in manual unless directed to Sears service center
CORRECTION
3ROBLEM
CAUSE
Mower bladeewlll
2.
Replace mower drive belt.
_ot rotate (con't)
3.
Replace idler pulley.
4. Contact aSears or other
qualified service center.
)oor grass
tischarge
-leadlight(s) not
working
if so equipped)
3attery will not
;harge
Loss of drive
2. Wom/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. Wom, 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) or lamp(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. Freewheel control in
=disengaged"
position.
2.
Motion drive belt worn,
damaged, or broken.
3. Air trapped in transmission
during shipment or
servicing.
Engine throttle control not
set at =SLOW"
position for 30 seconds
before stopping engine.
.
Engine"backfires"
when turning
engine
"OFF"
1. Place throttle control in
UFAS'F' 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.
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 wiring and connec-
tions.
5.
Replace fuse.
1. Replace battery.
2. Check/clean
all connec-
tions.
3.
Replace regulator.
4. Replace
alternator.
1. Place freewheel control in
"engaged"
position.
2. Replace motion drive belt.
3. Purge transmission.
.
Move throttle control to
=SLOW" position and allow
to idle for 30 seconds before
stopping engine.
32

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