TROUBLESHOOTING CHART

!PROBLEM Does not start

Loss of power

Poor cut-

_neven

Excessive

vibration

CAUSE

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.

1.Wom, bent or looseblade.

2.Wheel heights uneven.

3.Buildupof grass, leaves and trash under mower.

1.Wom, bent or loose blade.

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.

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.

1.

Replace

blade. Tighten

 

blade bolt.

2. Bent engine crankshaft.

16

2. Contact a Sears or other

qualified service center.

Page 16
Image 16
Craftsman 917.3875 owner manual Troubleshooting Chart, Cause, Correction