Craftsman 917.389390 Owner's Manual page 16

6.0 horsepower, 21" multi-cut rotary lawn mower
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TROUBLESHOOTING
CHART
CAUSE
PROBLEM
Loss of power
Poor cut- uneven
Excessive
vibration
Starter rope hard
topull
Grass catcher
notfilling (ifso
equipped)
Hard to push
1.
Rear of lawn mower housin
or cutting blade dragging
in heavy grass,
2.
Cutting too much grass.
3.
Dirty air filter.
4.
Buildup of grass, leaves,
and trash under mower°
5.
Too much oil in engine,
6.
Walking speed too fast.
1.
Worn, bent or loose blade.
2o
Wheel heights
uneven.
3.
Buildup of grass, leaves
and trash under mower.
1o Wom, bent or loose blade,
2.
Bent engine crankshaft.
.
2,
3.
4.
Engine flywheel brake is on
when control bar is released,
Bent engine crankshaft.
Blade adapter broken.
Blade dragging in grass.
1,
Cutting height too low.
2.
Lift on blade worn off,
3_ Catcher not venting air°
1,
Grass is too high orwheel
height is too low.
2.
Rear of lawn mower
housing or blade dragging
in grass,
3,
Grass catcher too full,
4.
Handle height position not
right for you,
CORRECTION
1.
Set to "Higher Cut"
position°
2,
Set to "Higher Cut"
position.
3.
Clean/replace air filter.
4.
Clean underside of mower
housing,
5.
Check oil level.
6o Cut at slower walking
speed.
1,
Replace blade. Tighten
blade boil
2.
Set all wheels at same
height
3.
Clean underside
of
mower housing.
1.
Replace blade, Tighten
blade bolt.
2.
Contact an authorized
service center.
1.
Depress control bar to
upper handle before
pulling starter rope.
2.
Contact an authorized
service center,
3.
Replace blade adapter_
4,
Move lawn mower to cut
grass or to hard surface
1_ Raise cutting height,
2.
Replace blade.
3,
Clean grass catcher.
1.
Raise cutting height,
2.
Raise rear of lawn mower
housing one (1) setting
higher.
3_
Empty grass catcher.
4.
Adjust handle height to
suit.
I6

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