Craftsman 917.28726 - Manual (Page 31)

TROUBLESHOOTING CHART:
See appropriate section in manual unless directed to Sears service center
PROBLEM CAUSE CORRECTION
Mower blades will
not rotate 1. Obstruction In clutch
mechanism.
1. Remove obstruction.
2. Worn/damaged mower drive
belt.
2. Replace mower drive belt.
3. Frozen idler pulley. 3. Replace idler pulley.
4. Frozen blade mandrel. 4. Contact a Sears or other
qualified service center.
5. Mower belt off engine pulley. 3. Install belt on engine pulley.
Poor grass
discharge 1. Engine speed too slow. 1. Place throttle control in
“FAST” position.
2. Travel speed too fast. 2. Shift to slower speed.
3. Wet grass. 3. Allow grass to dry before
mowing.
4. Mower not level. 4. Level mower.
5. Low/uneven tire air pressure. 5. Check tires for proper air
pressure.
6. Worn, bent or loose blade. 6. Replace/sharpen blade.
Tighten blade bolt.
7. Buildup of grass, leaves and
trash under mower.
7. Clean underside of mower
housing.
8. Mower drive belt worn. 8. Replace mower drive belt.
9. Blades improperly installed. 9. Reinstall blades sharp edge
down.
10 Improper blades used. 10 Replace with blades listed
in this manual.
11. Clogged mower vent
holes from buildup of grass,
leaves, and trash around
mandrels.
11 Clean around mandrels to
open vent holes.
Headlight(s) not 1. Light switch is “OFF". 1. Turn light switch “ON".
working 2. Bulb(s) or lamp(s) burned out. 2. Replace bulb(s) or lamp(s).
(if so equipped) 3. Faulty light switch. 3. Check/replace light switch.
4. Loose or damaged wiring. 4. Check wiring and connections.
5. Blown fuse. 5. Replace fuse.
Battery will not 1. Bad battery cell(s). 1. Replace battery.
charge 2. Poor cable connections. 2. Check/clean all connections.
3. Faulty regulator
(if so equipped).
3. Replace regulator.
4. Faulty alternator. 4. Replace alternator.
Loss of drive 1. Freewheel control in
“disengaged" position.
1. Place freewheel control in
“engaged” position.
2. Motion drive belt worn,
damaged, or broken.
2. Replace motion drive belt.
3. Air trapped in transmission
during shipment or servicing.
3. Purge transmission.
Engine “backfires”
when turning
engine “OFF”
1. Engine throttle control not set
between half and full speed
(fast) position before stopping
engine.
1. Move throttle control
between half and full speed
(fast) position before
stopping engine.
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