Craftsman 917.38721 Lawn Mower User Manual


 
TROUBLESHOOTING CHART
PROBLEM
Loss of power
Poorcut-uneven
_cessive
/ibration
_tarter rope hard
:opull
m_
3ross catcher
tot filling (if so
.-=quipped)
-lard to push
3AUSE
o Rear of lawn mower housing
or cutting blade dragging
in heavy grass.
o Cutting too much grass,
o Dirty air filter.
= Buildup of grass, leaves,
and trash under mower:
o Too much oil in engine.
o Walking speed too fasL
= Worn, bent orloose blade,
Wheel heights uneven_
= Low engine speed.
= BuUdupof grass, leaves
and trash under mower.
= Worn, bent or loose blade.
= Bent engine crankshaft.
o Engine flywheel brake ison
when control bar is released.
= Bent engine crankshaft.
o Blade adapter broken.
o Blade dragging in grass.
° Cutting height too low.
Lift on blade wom off.
° Catcher not venting air.
o Low engine speed_
o Grass is too high or wheel
height is too low.
° Rear of lawn mower
housing or blade dragging
in grass.
o Grass catcher too full.
= Handle height position not
rightfor you°
CORRECTION
o Set to"Higher Cur'
position,
o Set to"Higher Cut"
position.
o Clean/replace air filter:
= Clean underside of mower
housing.
= Check oil level
= Cut at slower walking
speed.
. Replace bladeo]ighten
blade bait,
= Set all wheels at same
height
° Set engine speed control
in fast position.
o Clean underside of
mower housing=
o Replace blade.'l]ghten
blade boll
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.
o Raise cutting height.
o Replace blade.
Clean grass catcher.
o Set engine speed control
in fast position.
o Raise cutting height.
o Raise rear of lawn mower
housing one (1) setting
higher.
° Empty grass catcher.
o Adjust handle height to
suit.
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