Craftsman 917.270730 Owner's Manual page 29

TROUBLESHOOTING CHART
PROBLEM CAUSE CORRECTION
Poor cut- uneven • Worn, bent or loose blade.
Mower bladeswill
not rotate
• Mower deck not level.
• Buildup of grass, leaves,
and trash under mower.
• Bent blade mandrel.
• Clogged mower deck vent
holes from buildup of
grass, leaves, and trash
around mandrels.
Poor grass
discharge
Headlight(s) not
working
(if so equipped)
• Obstruction in clutch
mechanism.
• Worn/damaged mower
drive belt.
• Frozen idler pulley.
• Frozen blade mandrel.
• Engine speed too slow.
• Travel speed too fast.
• Wet grass.
• Mower deck not level.
• Low/uneven tire air pressure
• Worn, bent or loose blade.
• Buildup of grass, leaves
and trash under mower.
• Mower drive belt worn.
• Blades improperly installed.
• Improper blades used.
Clogged mower deck vent
holes from buildup of grass,
leaves, and trash around
mandrels.
• Switch is "OFF".
• Bulb(s) burned out.
• Faulty light switch.
• Loose or damaged wiring.
• Blown fuse.
• Replace blade. Tighten
blade bolt.
• Level mower deck.
• Clean underside of mower
housing.
• Replace blade mandrel.
• Clean around mandrels to
open vent holes.
• Remove obstruction.
• Replace mower drive belt.
• Replace idler pulley.
• Replace blade mandrel.
• Place throttle control in
"FAST" position.
• Shift to slower speed.
• Allow grass to dry before
mowing.
• Level mower deck.
• Check tires for proper air
pressure.
• Replace/sharpen blade.
Tighten blade bolt.
• Clean underside of mower
housing.
• Replace mower drive belt.
• Reinstall blades sharp edge
down.
• Replace with blades listed in
this manual.
• Clean around mandrels to
open vent holes.
• Turn switch "ON".
• Replace bulb(s).
• Check/replace light switch.
• Check wiring and connections
• Replace fuse.
29