Craftsman 28910 - Lt 2000 20 HP 42" Lawn Tractor Operation Manual page 31

TROUBLESHOOTING CHART:
See appropriate section in manual unless directed to Sears service center
PROBLEM
Poor cut = uneven
cutting
Mower blades will
not rotate
Poor grass
CAUSE
1 Worn, bent or loose blade.
2 Mower deck not level.
3 Buildup of grass, leaves, and
trash under mower.
4 Bent blade mandrel.
5
1
2
3
4
Clogged mower deck vent from
build-up of grass, leaves, and
trash around mandrels.
Obstruction in clutch mechanism.
Worn/damaged mower drive belt.
Frozen idler pulley.
Frozen blade mandrel.
1 Engine speed too slow.
CORRECTION
1 Replace blade. Tighten blade bolt
2 Level mower deck.
3 Clean underside of mower
housing.
4 Contact a Sears or other
qualified service center.
5 Clean around mandrels to
open vent holes.
1
2
3
Remove obstruction.
4
1
Replace mower drive belt.
Replace idler pulley.
Contact a Sears or other
qualified service center.
Place throttle control in "FAST"
discharge
2 Travel speed too fast.
3 Wet grass.
4 Mower deck not level.
position.
2 Shift to slower speed.
3 Allow grass to dry before mowing
4 Level mower deck.
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 11
from buildup of grass, leaves, and
trash around mandrels.
5 Check tires for proper PSI.
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.
Clean around mandrels to
open vent holes.
Headlight(s) not
working
(if so equipped)
1 Light switch is "OFF".
2 Bulb(s) or lamp(s) burned out.
3 Faulty light switch.
4 Loose or damaged wiring.
5 Blown fuse.
1 Turn light switch "ON".
2 Replace bulb(s) or lamp(s).
3 Check/replace light switch.
4 Check wiring and connections.
5 Replace fuse.
31