Craftsman 917.273050 Owner's Manual page 32

TROUBLESHOOTING CHART
CAUSE
PROBLEM
Poor cut - uneven
(Cont.)
Mower blades will
not rotate
Poor grass
discharge
Headlight(s) not
working
Battery will not
charge
Engine "backfires"
when turning
engine "OFF"
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
pressure.
• Worn. bent or loose
blade housing.
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 batterycell(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 around mandrels 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 bolt.
Clean underside of mower
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.
32