Craftsman 917.270770 - Manual (Page 30)

TROUBLESHOOTING CHART
PROBLEM CAUSE CORRECTION
Poor cut - uneven
(cont’d) • Bent blade mandrel.
• Clogged mower deck vent
holes from buildup of
grass, leaves, and trash
around mandrels.
• Replace blade mandrel.
• Clean around mandrels to
open vent holes.
Mower blades will
not rotate • Obstruction in clutch
mechanism.
• Wom/damaged mower
drive belt.
• Frozen idler pulley.
• Frozen blade mandrel.
• Remove obstruction.
• Replace mower drive belt.
• Replace idler pulley.
• Replace blade mandrel.
Poor grass dis­
charge • 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.
• 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.
• Mower drive oeii worn.
• Blades improperly
installed.
• Improper blades used.
• Clogged mower deck vent
holes from buildup of
grass, leaves, and trash
around mandrels.
• Replace mower drive belt.
• Reinstall blades sharp edge
down.
• Replace with blades listed in
this manual.
• Clean around mandrels to
open vent holes.
Headlight(s) not
working (if so
equipped)
• Switch is “OFP.
• Bulb(s) burned out.
• Faulty light switch.
• Loose or damaged wiring.
• Blown fuse.
• Turn switch “ON”.
• Replace bulb(s).
• Check/replace light switch.
• Check wiring and connec­
tions.
• Replace fuse.
Battery will not
charge • Bad battery cell(s).
• Poor cable connections.
• Faulty regulator (if so
equipped).
• Faulty alternator.
• Replace battery.
• Check/clean all connections.
• Replace regulator.
• Replace alternator.
Engine “backfires"
when turning
engine-“OFP
• Engine throttle control not
set at “SLOW"
position for 30 seconds
before stopping engine.
• Move throttle control to
“SLOW” position and allow
to idle for 30 seconds before
stopping engine.
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