Craftsman 917.273012 Owner's Manual page 34

TROUBLESHOOTING CHART
PROBLEM
MoWer blades
will
not mtate
Poor grass dis-
charge
Headlight(s) not •
working (if so •
equipped) •
Battery will not •
charge "
Engine "backfires"
when turning engine
"OFF"
CAUSE
• Obstruction in clutch mech-
anism.
• Worn/damaged mower
ddve 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 pres-
sure.
• 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.
Engine throttle control not
set at "SLOW"
position for 30 seconds
before stopping engine.
CORRECTION
• 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 lightswitch.
• Check wiring and connec-
tions.
• Replace fuse.
• Replace battery.
• Check/clean all connec-
tions.
• Replace regulator,
• Replace alternator.
• Move throttle control to
=SLOW" position and allow
to idle for 30 seconds before
stopping engine.
34