Craftsman 917.270723 Owner's Manual page 32

TROUBLESHOOTING CHART
PROBLEM CAUSE CORRECTION
Mower blades will not • Obstruction in clutch • Remove obstruction.
rotate mechanism.
• Worn/damaged mower • Replace mower drive belt.
drive belt.
• Frozen idler pulley. • Replace idler pulley.
• Frozen blade mandrel. • Replace blade mandrel.
Poor grass discharge
Headlight(s) not
working (If so
equipped)
Battery will not charge
Loss of Drive
Engine "backfires"
when turning engine
"OFF"
• 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.
• 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 transmiss-
ion during shipment or
servicing.
• Engine throttle control
not set at "SLOW"
position for 30 seconds
before stopping engine.
32
• 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 connec
tions.
• Replace fuse.
• Replace battery.
• Check/clean all connec
tions.
• Replace regulator.
• Replace alternator.
• Place freewheel control in
"engaged" position.
• Replace motion drive belt.
• Purge transmission.
• Move throttle control to
"SLOW" position and allow
to idle for 30 seconds before
stopping engine.