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Craftsman 917.378770 Manual Del Usuario página 17

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TROUBLESHOOTING
- See appropriate section in manual unless directed
to a Sears Service Center.
PROBLEM
Loss of power
Poor cut-
uneven
Excessive
vibration
Starter rope
hard to pull
CAUSE
1. Rear of lawn mower
housing or cutting blade
dragging in heavy 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.
CORREC'RON
1. Set to "Higher Cut"
position.
2. Set to "Higher
Cut"
position.
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
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.
3. Blade
adapter
broken.
4.
Blade dragging
in grass.
Loss of drive
1.
Drive wheels
not turning
1. Adjust
or replace
drive
with drive control
engaged,
control
cable.
2.
Belt not driving.
2. Put belt on pulleys or
replace
belts if broken.
Grass catcher
1. Cutting
height too low.
1. Raise cutting
height.
notfilling
(ifso
2.
Lift on blade worn off.
2. Replace
blade.
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. 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.
2. Raise rear of lawn mower
housing
one (1) setting
higher.
3. Empty grass catcher.
4. Adjust
handle
height to
suit.
17

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