Craftsman 917.389250 Owner's Manual page 18

4.0 horsepower 20" rear discharge, rotary lawn mower
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TROUBLESHOOTING
CHART
PROBLEM
CAUSE
Excessive
1. Worn, bent or loose blade.
vibration
2. Bent engine crankshaft.
Starter rope hard
to pull
Grass
catcher
not filling (if so
equipped)
Hard to push
1. Engine flywheel
brake is on
when control bar is released.i
2. Bent engine crankshaft.
3. Blade adapter
broken.
4. 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 or wheel
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. 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.
18

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