Craftsman 917.27066 Owner's Manual page 32

TROUBLESHOOTING CHART
PROBLEM
Poor grass discharge
(cont'd)
Headlight(s) not
working (if so
equipped)
Battery will not
charge
Loss of drive
Engine "backfires"
when turning engine
"OFF"
CAUSE
• 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 "disen-
gaged" position.
• Motion drive belt worn, dam-
aged or broken.
• Air trapped in transmission
during shipment
or servicing.
• Engine throttle control not set
at "SLOW" position for 30
seconds before stopping en-
gine.
CORRECTION
• 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 wiringand connections.
• Replace fuse,
Replace battery.
Check!clean all connections.
Replace regulator.
Replace alternator.
Place freewheel control in "en-
gaged" position.
Replace motion drive belt.
Purge transmission.
Move throttle control to "SLOW"
position and allow to idle for 30
seconds before stopping en-
gine.
32