Troubleshooting Chart - Craftsman 917.377151 Owner's Manual

IMPORTANT: Never cover mower while
engone and exhaust .areas are still warm.
TROUBLESHOOTING 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
Starter rope hard
to pull
A CAUTION:Never store the lawn mower
with gasoline in the tank inside a building
where fumes may reach an open flame or
spark. Allow the engine to cool before
storing in any enclosure.
4. Water in fuel.
5. Spare plug wire is 5.
disconnected.
6. Bad spark plug. 6.
7. Loose blade or broken 7.
blade adapter.
8. Control bar in released 8.
position.
9. Control bar defective. 9.
1. Rear of lawn mower 1.
housing or cutting blade
dragging in heavy grass.
2. Cutting too much grass. 2.
3. Dirty air filter. 3.
4. Buildup of grass, leaves, 4.
and trash under mower.
5. Too much oil in engine. 5.
6. Walking speed too fast. 6.
1. Worn, bent or loose blade. 1.
2. Wheel heights uneven. 2.
3. Buildup of grass, leaves 3.
and trash under mower.
1. Worn, bent or loose blade. 1.
2. Bent engine crankshaft. 2.
1. Engine flywheel brake is on 1.
when control bar is released.
2. Bent engine crankshaft. 2.
3. Blade adapter broken. 3.
4. Blade dragging in grass. 4.
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.
Connect wire to plug.
Replace spark plug.
Tighten blade bolt or
replace blade adapter.
Depress control bar to
handle.
Replace control bar.
Set to "Higher Cut"
position.
Set to "Higher Cut"
position.
Clean/replace air filter.
Clean underside of mower
housing.
Check oil level.
Cut at slower walking
speed.
Replace blade. Tighten
blade bolt.
Set all wheels at same
height
Clean underside of
mower housing.
Replace blade. Tighten
blade bolt.
Contact an authorized
service center.
Depress control bar to
upper handle before
pulling starter rope.
Contact an authorized
service center.
Replace blade adapter.
Move lawn mower to cut
grass or to hard surface.
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