Craftsman 917.379071 Owner's Manual page 17

TROUBLESHOOTING - See appropriate section in manual unless directed
to a Sears Service Center.
PROBLEM CAUSE
Poor cut - 1. Worn, bent or loose blade.
uneven
2. Wheel heights uneven.
3. Buildup of grass, leaves
and trash under mower.
Excessive 1. Worn, bent or loose blade.
vibration
2. Bent engine crankshaft.
Starter rope
hard to pull
2.
3.
4.
Engine flywheel brake is on
when control bar is released.
Bent engine crankshaft.
Blade adapter broken.
Blade dragging in grass.
CORRECTION
1. Replace blade. Tighten
blade bolt.
2. Set all wheels at same
height.
3. Clean underside of
mower housing.
1. Replace blade. Tighten
blade bolt.
2. Contact a Sears or other
qualified service center.
1. Depress control bar to
upper handle before
pulling starter rope.
2. Contact a Sears or other
qualified service center.
3. Replace blade adapter.
4. Move lawn mower to cut
grass or to hard surface.
Grass catcher 1. Cutting height too low. 1. Raise cutting height.
not filling 2. Lift on blade worn off. 2. Replace blade.
(If so equipped) 3. Catcher not venting air. 3. Clean grass catcher.
Hard to push 1. Raise cutting height. 1. Grass is too high or wheel
height is too low.
2. Rear of lawn mower
housing or cutting blade
dragging in grass.
3. Grass catcher too full.
4. Handle height position not
right for you.
1. Belt wear.
2. Belt off of pulley.
3. Drive cable worn or broken.
4. "Loose" drive control system.
Loss of drive
or slowing of
drive speed
2. Raise rear of lawn mower
housing one (1) setting
higher.
3. Empty grass catcher.
4. Adjust handle height to suit.
1. Check/replace drive belt.
2. Check/reinstall drive belt.
3. Replace drive cable.
4. Adjust drive control.
17