Craftsman 917.379480 Lawn Mower User Manual


 
TROUBLESHOOTING CHART
PROBLEM CAUSE
Excessive
vibration
Starter rope hard
topull
Loss of drive
Gross catcher
hot filling (if so
equipped)
Hard to push
1. Worn, bent or loose blade.
2. Bent engine crankshaft.
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. Drive wheels not tuming
with drive control engaged.
2. Belt not driving
1. Cutting height tee low.
2. Lift on blade wom off.
3. Catcher not venting air.
4. Low engine speed
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. ]]ghten
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 if broken.
1. Raise cutting height.
2. Replace blade.
3. Clean grass catcher.
4. Set throttle to fast position.
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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