Troubleshooting Chart - Craftsman 917.3875 Owner's Manual

TROUBLESHOOTING CHART
! PROBLEM CAUSE
Does not start
Loss of power
Poor cut-
_neven
1. Dirtyair filter.
2. Outof fuel.
3. Stale fuel.
4. Water in fuel.
5. Spark plug wire is
disconnected.
6. Bad spark plug.
7. Loose blade or broken
blade adapter.
8, Controlbar in released
position.
9. Controlbar defective.
1. Rear of lawn mower
housingorcutting blade
draggingin heavy grass.
2. Cuttingtoo much grass.
3. Dirtyair filter.
4. Buildupof grass,leaves,
and trash under mower.
5. Too much oil in engine.
6. Walkingspeed too fast.
CORRECTION
1. Clean/replaceair filter,
2, Fillfuel tank.
3. Drain tank and refillwith
fresh clean fuel.
4. Drain fuel tank and
carburetorand refilltank
with fresh gasoline.
5. Connectwire to plug.
1. Wom, bent or looseblade.
2. Wheel heights uneven.
3. Buildupof grass, leaves
and trash under mower.
1. Wom, bent or loose blade.
2. Bent engine crankshaft.
i6. Replace spark plug.
7. Tightenblade boltor
replace blade adapter.
8. Depresscontrolbar to
handle.
9. Replace controlbar.
1. Set to "Higher Cut"
position.
2. Set to =HigherCut"
position.
3. Clean/replaceair filter.
4. Clean undersideof mower
housing.
5. Check oil level.
6. Cut at slowerwalking
speed.
1. Replace blade. Tighten
blade bolt.
2. Set all wheels at same
height
3. Clean underside of
mower housing.
Excessive 1. Replace blade. Tighten
vibration blade bolt.
2. Contact a Sears or other
qualified service center.
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