Yard-Man 31AE993I401 manual Troubleshooting, Problem, Cause, Remedy

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SECTION 9: TROUBLESHOOTING

SECTION 9: TROUBLESHOOTING

Problem

 

Cause

 

Remedy

 

 

 

 

 

Engine fails to start.

1.

Fuel tank empty, or stale fuel.

1.

Fill tank with fresh gasoline.

 

2.

Blocked fuel line.

2.

Clean the fuel line.

 

3.

Choke not in ON position

3.

Move switch to ON position

 

4.

Faulty spark plug.

4.

Clean, adjust gap or replace.

 

5.

Safety key not in ignition switch on engine.

5.

Insert the key fully into the switch.

 

6.

Spark plug wire disconnected.

6.

Connect spark plug wire.

 

7.

Primer button not being used properly.

7.

Refer to the engine manual.

Engine runs erratic.

1.

Unit running on CHOKE.

1.

Move choke lever to OFF position.

 

2.

Blocked fuel line or stale fuel.

2.

Clean fuel line and fill tank with clean, fresh

 

 

 

 

gasoline.

 

3.

Water or dirt in fuel system.

3.

Drain fuel tank and carburetor. Refill with

 

 

 

 

fresh fuel.

 

4.

Carburetor out of adjustment.

4.

Refer to the engine manual.

Loss of power.

1.

Spark plug wire loose.

1.

Connect and tighten spark plug wire.

 

2.

Gas cap vent hole plugged.

2.

Remove ice and snow from gas cap. Be

 

 

 

 

certain vent hole is clear.

 

3.

Exhaust port plugged.

3.

Refer to the engine manual.

Engine overheats.

1.

Carburetor not adjusted properly.

1.

Refer to the engine manual or have the

 

 

 

 

carburetor adjusted by an authorized

 

 

 

 

engine service dealer.

Excessive vibration.

1.

Loose parts or damaged auger.

1.

Stop engine immediately and disconnect

 

 

 

 

spark plug wire. Tighten all bolts and nuts. If

 

 

 

 

vibration continues, have unit serviced by

 

 

 

 

an authorized service dealer.

Unit fails

1.

Traction control cable in need of adjustment.

1.

Adjust traction control cable. Refer to

to propel itself.

 

 

 

Adjustments.

 

2.

Drive belt loose or damaged.

2.

Replace drive belt.

Unit fails

1.

Discharge chute clogged.

1.

Stop engine immediately and disconnect

to discharge snow.

 

 

 

spark plug wire. Clean discharge chute and

 

 

 

 

inside of auger housing.

 

2.

Foreign object lodged in auger.

2.

Stop engine immediately and disconnect

 

 

 

 

spark plug wire. Remove object from auger.

 

3.

Auger control cable in need of adjustment.

3.

Refer to Final Adjustments in Assembly

 

4.

Auger belt loose or damaged.

 

Section.

 

5.

Shear bolt(s) sheared.

4.

Refer to Adjustments.

 

 

 

5.

Replace shear bolt(s).

NOTE: For repairs beyond the minor adjustments listed above, contact the local dealer.

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Contents OPERATOR’S MANUAL Model 31AE993I40133” Snow Thrower MTD PRODUCTS INC. P.O. BOX 368022 CLEVELAND, OHIOContent TABLE OF CONTENTSFINDING MODEL NUMBER CALLING CUSTOMER SUPPORTTraining SECTION 1 IMPORTANT SAFE OPERATION PRACTICESPreparation OperationMaintenance And Storage Unpacking SECTION 2: ASSEMBLING YOUR SNOW THROWERLoose Parts Assembling HandleAuger Control Final AdjustmentsTraction Control and Shift Lever Auger Control SECTION 3: KNOWING YOUR SNOW THROWERTraction Control / Auger Control Lock Skid ShoesShift Lever Safety Ignition KeyChute Crank Chute Tilt ControlBefore Starting SECTION 4: OPERATING YOUR SNOW THROWERGas And Oil Fill-up To Start EngineTo Stop Engine SECTION 5: MAKING ADJUSTMENTSTo Engage Wheel Drive To Engage AugersAuger Control Adjustment Skid Shoe AdjustmentChute Assembly Drive WheelsGeneral Recommendations SECTION 6: MAINTAINING YOUR SNOW THROWERCarburetor LubricationAugers SECTION 7: SERVICING YOUR SNOW THROWERShave Plate and Skid Shoes Auger Bearings and ShaftAuger Belt Replacing BeltsDrive Belt Changing Friction Wheel RubberSECTION 8: OFF-SEASONSTORAGE EngineProblem SECTION 9: TROUBLESHOOTINGCause RemedyModel 31AE993I401 Part Description Part NoModel 31AE993I401 Part No A 32 Part No 15 22 18 14 7 21 1 13 3 20 20 24 31 Notes Page MANUFACTURER’S LIMITED WARRANTY FOR