Craftsman 917.270921 Owner's Manual page 32

PROBLEM
TROUBLESHOOTING CHART
CAUSE
Poor grass
discharge
Headlight(s) not
! working
(if so equipped)
Battery wUt 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 ceil(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
stopping engine.
CORRECTION
• 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.
• -rum switch "ON'.
• Replace bulb(s).
• Check/replace light switch.
• Check wiring and connec
tions,
• Replace fuse.
• Replace battery.
• Check/clean all connections.
• 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.
32