Troubleshooting Chart; Exploded View - Craftsman 900.370510 Operator's Manual

tROUBLESHOOTING CHART
PROBLEM
Does not start
Poor performance
Poor cut-uneven
Excessive
vibration
Mower stops
CAUSE
* Power cord is not properly
plugged in
t Mower Does Not
Stop when
Operator Presence
Control Switch is
Released
• No power from outlet
• Blade does not rotate
freely or mower deck is
clogged
• Grass too high or thick
Worn, bent or loose blade
Buildup of grass and
leaves under mower
• Worn, bent, unbalanced or
loose blade
• Bent motor motorshaft
• House circuit breaker trips
out or blows fuse
CORRECTION
• Check extension cord attach-
ment at both mower and outlet
ends.
• Check breaker or fuse.
• Unplug power cord, turn mower
on its side and check blade.
Make sure it is free to rotate.
Also check for clogging.
• Raise mower cutting height to
cut 1/3 of grass length.
• Walk at a slower pace
• Reduce cutting width if needed.
• Unplug power cord, check deck
for clogging, check blade for
sharpness.
• Unplug power cord.
• Replace blade. Tighten blade
bolt.
• Unplug power cord and clean
underside of mower
housing.
• Unplug power cord.
• Replace blade. Tighten blade
bolt.
• Contact an authorized service
center.
• Foreign material is block-
ing blade rotation
Hard to push • Grass is too high or wheel • Raise cutting height.
height is too low
Operator presence control • Replace operator presence
switch is damaged control switch.
• If mower won't start, check
house circuit breaker or fuse.
• Unplug power cord, turn mower
over, and clean out deck.
• Walk siower.
• Reduce cutting width.
• Raise mower cutting height.
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