Table 3-3. Troubleshooting

TM 10-3930-633-12

Table 3-3. Troubleshooting

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

ENGINE

1. ENGINE DOES NOT CRANK OR CRANKS VERY SLOWLY WITH KEY SWITCH IN START POSITION.

Step 1. Check to see that transmission range selector is in neutral (N) position.

Place range selector in neutral (N) position.

Step 2. Check for loose, corroded, or broken battery cables.

Clean corroded cable terminals. Tighten loose connections at battery, ground cable,

Step 3. Check electrolyte level in battery, and state of battery charge.

If electrolyte level is below top of plates, add distilled water until the electrolyte

level is inch above separators. Recharge battery (para 3-10).

2. ENGINE CRANKS NORMALLY BUT WILL NOT START.

Step 1. Check fuel level.

Replenish fuel supply.

Step 2. Check for broken or leaking fuel line between tank and carburetor.

Tighten any loose fittings in fuel line. Refer broken or defective fuel lines to

organizational maintenance.

3. ENGINE STALLS OR OPERATES ERRATICALLY.

Step 1. Check for dirty or restricted air cleaner.

Refer to organizational maintenance for air cleaner service.

4. ENGINE OVERHEATS.

Step 1. Check coolant level in radiator.

Add coolant as required to bring level to FULL mark (para 3-8).

Step 2. Check for leaves, trash, or other debris blocking air flow through radiator.

Clean area around radiator core and grillwork. Steam cleaning of core is recommended.

HAND BRAKE

1. PARKING BRAKE DOES NOT HOLD TRACTOR ON A GRADE.

Step 1. Check for loss of tension in brake linkage with lever in applied position.

Perform minor adjustment (para 3-9).

WHEELS AND TIRES

1. STEERING DIFFICULT, TRACTOR PULLS TO ONE SIDE.

Step 1. Check for low air pressure in one or more tires.

Inflate. all tires to proper pressure, as marked above wheel well.

Step 2. Check to see that proper size and type of tires are mounted.

Refer to organizational maintenance for tire replacement.

2. WHEEL WOBBLE.

Step 1. Check to see that all wheel mounting nuts are tight.

Tighten any loose nuts.

Step 2. Inspect wheel for bent or damaged rim.

Refer to organizational maintenance for wheel replacement.

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