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CRAFTSMAN 917.377240 Owner's Manual Page 18

7.0 horsepower power-propelled 21" multi-cut.
TROUBLESHOOTING
- See appropriate
section in manual unless directed
to a Sears
Service
Center.
PROBLEM
CAUSE
Loss of power
1. Rear of mower housing or
Poor cut -
uneven
Excessive
vibration
Starter rope
hard to pull
CORRECTION
1. Raise cutting height.
2. Raise cutting height.
3. Clean/replace
air filter.
4. Clean underside of mower
housing.
5. Check oil level.
6. Cut at slower walking speed.
blade dragging in grass.
2. Cutting too much grass.
3. Dirty air filter.
4. Buildup of grass, leaves,
and trash under mower.
5. Too much oil in engine.
6. Walking speed too fast.
1. Worn, bent or loose blade.
2. Wheel heights uneven.
3. Buildup of grass, leaves
and trash under mower.
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. 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 mower housing or
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.
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 the 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. Raise cutting height.
not filling
2. Replace blade.
(If so equipped)
3. Clean grass catcher.
Hard to push
1. Raise cutting height.
Loss of drive
or slowing of
drive speed
2. Raise rear of 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.
18

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