Craftsman 917.377563 Owner's Manual page 18

TROUBLESHOOTING CHART
PROBLEM
Loss of power
Poor cut - uneven
Excessive
vibration
Starter rope hard
to pull
Grass catcher
not filling (if so
equipped)
Hard to push
CAUSE
. Rear of lawn mower housing
Qr cutting blade dragging
in heavy grass.
• Cutting too much grass.
• Dirty alrfiiter+
. Buildup of grass, leaves,
and trash under mower.
• Too much oil in engine+
• Walking speed too fast.
• Wom, bent or loose blade.
. Whee! heights uneven+
. Buildup of grass, leaves
and trash under mower.
-Wom, bent or loose blade.
• Bent engine crankshaft+
• Engine flywheeT brake is on
when control bar is released+
= Bent engine crankshaft.
• Blade adapter broken+
• Blade dragging in grass°
• Cutting height too low.
• Lift on blade worn off.
• Catcher not venting alr_
• Grass is too high or wheel
height is too low+
• Rear of lawn mower
housing or blade dragging
in grass+
• Grass catcher too full
• Handle height position not
right for you+
CORRECTION
• Set to "Higher Cut"
position.
• Set to "Higher Cut"
position.
• Clean/replace airfilter.
• Clean underside of mower
housing.
• Check oil level.
• Cut at slower walking
speed.
• Replace blade. _ghten
blade bolt.
• Set all wheels at same
height
- Clean underside of
mower housing.
• Replace blade. _ghten
blade bolt,
• Contact an authorized
service center°
• Depress control bar to
upper handle before
pulling starter rope.
o Contact an authorized
service center.
• Replace blade adapter_
• Move lawn mower to cut
grass or to hard surface
to start engine.
. Raise cutting height.
° Replace btade.
• Clean grass catcher+
Raise cutting height,
Raise rear of lawn mower
housing one (1) setting
higher.
Empty grass catcher.
Adjust handle height to
suit.
18