Craftsman 917.275021 Owner's Manual page 35

TROUBLESHOOTING CHART
PROBLEM CAUSE CORRECTION
Mower blades will 1. Obstruction in clutch 1. Remove obstruction.
not rotate mechanism.
2. Worn/damaged mower 2. Replace mower drive belt.
drive belt.
3. Frozen idler pulley. 3. Replace idler pulley.
4. Frozen blade mandrel. 4. Replace blade mandrel.
Poor grass 1. Engine speed too slow.
I ,
i d,scharge
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.
Headlight(s) not 1.
working 2.
(if so equipped) 3,
4.
5,
Battery will not 1.
charge 2,
3,
4,
Loss of drive 1.
2.
3,
1. Engine "backfires"
when turning
engine
"OFF"
Switch is "OFP.
Bulb(s) or lamp(s) bumed out.
Faulty light switch.
Loose or damaged wiring.
Blown fuse.
Bad battery cell(s).
Poor cable connections.
Faulty regulator
(if so equipped).
Faulty alternator.
Freewheel control in
"disengaged" position.
Motion drive belt worn,
damaged, or broken.
Air trapped in transmission
during shipment or
servicing.
Engine throttle control not
set at "SLOW"
position for 30 seconds
before stopping engine.
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.
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.
35