Troubleshooting - Craftsman EZ3 917.273030 Owner's Manual

TROUBLESHOOTING CHART
CAUSE
Mower blades will
not rotate
Poor grass dis-
charge
Headlight(s) not
working (if so
equipped)
Battery will not
charge
Engine =backfires"
when turning engine
=OFF"
Obstruction in clutch mech-
anism.
= Worn/damaged mower
drive belt.
• Frozen idler pulley.
• Frozen blade ma,ndrel.
=l= IH=ll=lllll
° Engine speed too slow.
o
°
°
°
°
o
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. o
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.
o
o
o
Blown fuse. °
Bad battery ceU(s). °
Poor cable connections. °
Faulty regulator (if so
equipped).
Faulty altemator.
CORRECTION
o Remove obstruction.
= Replace mower drive belt.
. Replace idler pulley.
° Replace blade mandrel.
i llll i ll=
o Place throttle control in
"FAST" position.
o Shift to slower speed.
o Allow grass to dry before
mowing.
° Level mower deck.
o Check tires for proper air
pressure.
o 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.
° Tum switch "ON".
• Replace bulb(s).
= Check/replace light switch.
° Check wiring and connec-
tions.
Replace fuse.
°
o
Replace battery.
Check/clean all connec-
tions.
=H,,I,,,,
Replace regulator.
Replace alternator.
Engine throttlecontrolnot
set at "SLOW" positionfor
30 seconds before stopping
engine.
Move throttlecontrolto
=SLOW" positionand allow
to idle for 30 seconds before
stoppingengine.
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