Craftsman 917.379480 - Manual (Page 18)

TROUBLESHOOTING CHART
PROBLEM CAUSE CORRECTION
Excessive
vibration
1 . Worn, bent or loose blade.
2. Bent engine crankshaft.
1. Replace blade. Tighten
blade bolt.
2. Contact an authorized
ser^ce center.
Starter rope hard
to pull
1. Engine flywheel brake is on
when control bar is released.
2. Bent engine crankshaft.
3. Blade adapter broken,
4. Blade dragging in grass.
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.
Loss of drive 1. Drive wheels not turning
with drive control engaged.
2, Belt not driving
1. Adjust or replace drive control
cable.
2. Put belt on pulleys or
replace belts if broken.
Grass catcher
hotfiliing(ifso
equipped)
1. Cutting height too low.
2. Lift on blade worn off.
3. Catcher not venting air.
4. Low engine speed
1. Raise cutting height.
2. Replace blade.
3. Clean grass catcher.
4. Set throttle to fast position.
Hard to push 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.
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.
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