Craftsman 917.377592 Owner's Manual page 18

TROUBLESHOOTING
PROBLEM
Loss of power
CHART
Poor cut- uneven
Excessive
vibration
Starter rope hard
to pull
Grass catcher
not filling (if so
equipped)
Hard to push
CAUSE
o Rear of lawn mower housing
or cutting blade dragging
in hea W grass
o Cutting too much grass
o Dirty air filter
• Buildup of grass, leaves,
and trash under mower'
. Too much oil in engine
o WalPJngspeed too fast,
, Worn. bent or bose blade.
o Wheel heights uneven.
o Buildup of grass, leaves
and trash under mower,
o Worn, bent or loose blade.
° Bent engine crankshaft.
° Engine flywheel 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.
o Catcher not venting air_
. Grass is too high or wheel
height is too Iow_
. 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,
o Set to "Higher Cut''
position
o Clean/replace air filter
. Clean underside of mower
housing
o Check oil level
o Cut at slowerwalking
speed.
o Replace blade Tighten
blade bolt,
o Set all wheels at same
height
• Clean underside of
mower housing,
• Replace blade. Tighten
blade bolt.
° Contact an authorized
service center,
° Depress control bar to
upper handle before
pulling starter rope,
. Contact an authorized
service center:
o Replace blade adapter
° Move lawn mower to cut
grass or to hard surface
to start engine,
. Raise cutting height,
• Replace blade_
,, Clean grass catcher:
. Raise cutting height
° Raise rear of lawn mower
housing one (1) setting
higher,
• Empty grass catcher
o Adjust handle height to
suit.
18