Troubleshooting - Craftsman EZ3 917.270771 Owner's Manual

TROUBLESHOOTING CHART
PROBLEM
Poorcut
- uneven
(cont'd)
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 "OFP
CAUSE
• Bent blade mandrel.
• Clogged mower deck vent
holes from buildup of
grass, leaves, and trash
around mandrels.
• Obstruction in clutch
mechanism.
• Worn/damaged mower
drive 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 anve oel[ worn.
• Blades improperly
installed.
• Improper blades used.
• Clogged mower deck vent
holes from buildup of
grass, leaves, and trash
around mandrels.
• Switch is =OFP.
• Bulb(s) burned oH.
• 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
• Replace blade mandrel.
• Clean aroOndmandrels to
open vent holes.
• 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 belt.
• 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 connections.
• Replace regulator.
• Replace alternator.
Move throttle control to
"SLOW" position and allow
to idle for 30 seconds before
stopping engine.
30