Troy-Bilt 31AH7T74063 manual Troubleshooting, Problem Cause Remedy

Models: 31AH7T74063

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Wipe equipment with an oiled rag to prevent rust.

Remove spark plug and pour one ounce of engine oil through spark plug hole into cylinder. Cover spark plug hole with rag. Crank engine several times to distribute oil. Replace spark plug.

Follow the lubrication recommendations found in the Maintenance Section.

Always store the snow thrower in a clean, dry area.

NOTE: When storing any type of power equipment in an unventilated or metal storage shed, care should be taken to rust proof the equipment. Using a light oil or silicone, coat the equipment, especially any chains, springs, bearings, and cables.

SECTION 8: TROUBLESHOOTING

Problem

 

Cause

 

Remedy

 

 

 

 

 

Engine fails to start

1.

Fuel tank empty, or stale fuel.

1.

Fill tank with clean, fresh gasoline. Fuel

 

 

 

 

becomes stale after thirty days.

 

2.

Blocked fuel line.

2.

Clean the fuel line.

 

3.

Choke not in the ON position

3.

Move switch to the 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.

 

8.

Fuel shut-off valve closed. (If Equipped)

8.

Open fuel shut-off valve. (If Equipped)

Engine runs erratic

1.

Unit running on CHOKE.

1.

Move the choke lever to OFF position.

 

2.

Blocked fuel line or stale fuel.

2.

Clean the fuel line; fill the tank with clean,

 

 

 

 

fresh gasoline.

 

3.

Water or dirt in the fuel system.

3.

Drain the fuel tank and carburetor. Refill with

 

 

 

 

fresh fuel.

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.

Excessive vibration

1.

Loose parts or damaged auger.

1.

Stop the engine immediately and disconnect

 

 

 

 

the spark plug wire. Tighten all bolts and nuts.

 

 

 

 

If vibration continues, have the unit serviced

 

 

 

 

by an authorized service dealer.

Unit fails

1.

Traction control cable in need of adjustment.

1.

Adjust traction control cable. Refer to Making

to propel itself

 

 

 

Adjustment Section.

 

2.

Drive belt loose or damaged.

2.

Replace drive belt. Refer to the Service

 

 

 

 

Section.

Unit fails

1.

Discharge chute clogged.

1.

Stop engine and disconnect spark plug wire.

to discharge snow

 

 

 

Clean discharge chute and inside of auger

 

 

 

 

housing.

 

2.

Shear bolt sheared.

2.

Replace shear bolt.

 

3.

Foreign object lodged in auger.

3.

Stop engine immediately and disconnect

 

 

 

 

spark plug wire. Remove object from auger.

 

4.

Auger control cable in need of adjustment.

4.

Adjust auger control cable. Refer to the

 

 

 

 

Making Adjustments Section.

 

5.

Auger belt loose or damaged.

5.

Refer to Service Section.

 

6.

Shear bolt(s) sheared.

6.

Replace shear bolt(s).

Electric chute fails to

1.

Loose electrical connections.

1.

Make sure all connections are tight and fully

turn

 

 

 

installed.

 

2.

Blown Fuse.

2.

Replace fuse. Located under handle panel

 

 

 

 

near switch connector.

Electric chute turns in

1.

The switch connector is installed backwards

1.

Unplug the switch connector under the handle

opposite direction of the

 

 

 

panel. Turn connector 180° and reconnect.

switch

 

 

 

 

17

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Troy-Bilt 31AH7T74063 manual Troubleshooting, Problem Cause Remedy