Craftsman 917.377980 Owner's Manual page 18

6.75 horsepower 22" rear discharge power propelled rotary lawn mower
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TROUBLESHOOTING
CHART
PROBLEM
CAUSE
CORRECTION
Excessive
vibration
Starter rope hard
to pull
Loss of drive
Grass catcher
not flUing(if so
equipped)
Hard to push
1.
Worn, bent or loose blade.
2.
Bent engine crankshaft.
.
.
3.
4.
Engine flywheel brake is on
when control bar is released.
Bent engine crankshaft.
Blade adapter broken.
Blade dragging in grass.
1.
Drive wheels not tuming
with drive control engaged.
2.
Belt not drMng
1.
Cutting height too low.
2.
Lift on blade wom off.
3.
Catcher not venting air.
1.
Grass is too high or wheel
height is tee 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.
1.
Replace blade. -13ghten
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.
Adjust or replace drive control
cable.
2.
Put belt on pulleys or
replace belts ff broken.
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.
18

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