Sears Craftsman 917.375451 Manual Del Operador página 20

PROBLEM
Loss of power
Poor cut -
urleverl
Excessive
vibration
Starter rope
hard to pull
Grass catcher
not filling
(if so equipped)
Hard to push
Loss of drive
or slowing of
drive speed
.
.
3.
4.
5.
6.
1.
2.
3.
CAUSE
Rear of lawn mower
housing or cutting blade
dragging in heavy grass.
Cutting too much grass.
Dirty air filter.
Buildup of grass, leaves,
and trash under mower.
Too much oil in engine.
Walking speed too fast.
Worn, bent or loose blade.
blade bolt.
Wheel heights uneven.
height.
Buildup of grass, leaves
and trash under mower.
1. Worn, bent or loose blade.
blade bolt.
2. Bent engine crankshaft.
qualified service center.
.
Engine flywheel brake is on
when control bar is released.
2. Bent engine crankshaft.
qualified service center.
3. Blade adapter broken.
4. Blade dragging in grass.
grass or to hard surface.
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 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.
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.
1. Replace blade. Tighten
2. Set all wheels at same
3. Clean underside of
mower housing.
1. Replace blade. Tighten
2. Contact a Sears or other
.
.
3.
4.
Depress control bar to
upper handle before
pulling starter rope.
Contact a Sears or other
Replace blade adapter.
Move lawn mower to cut
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.
1. Check/replace drive belt.
2. Check/reinstall drive belt.
3. Replace drive cable.
4. Adjust drive control.
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