Craftsman 917.378421 Manual Del Usuario página 17

ROUBLESHOOTING CHART
PROBLEM CAUSE
Does not start 1. Dirty air filter.
2. Out of fuel.
3. Stale fuel,
Loss of power
Poor cut -
uneven
Excessive
vibration
4. Water in fuel.
5. Spark plug wire is
disconnected.
6. Bad spark plug.
7. Loose blade or broken
blade adapter.
8. Control bar in released
pealtlon.
9. Control bar defective.
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. Wom, 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.
Starter rope hard
topull
CORRECTION
1. Clean/replace air filter.
2. Fill fuel tank.
3. Drain tank and refill with
fresh clean fuel.
4. Drain fuel tank and
carburetor and refill tank
with fresh gasoline.
5. Connect wire to plug.
6. Replace spark plug.
7. Tighten blade belt or
replace blade adapter.
8. Depress control bar to
handle.
9. Replace control bar.
1. Set to "Higher Cut"
position.
2. Set to =Higher Cut"
position.
3. Cleenireplace 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.
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.
Loss of drive 1. Drive wheels not turning t. Adjust or replace drive
with drive control engaged, control cable.
2. Belt not driving. 2. Put belt on pulleys or
replace belts if broken.
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