Preliminary Alignment Inspection Independent Front Suspension

Important: Before making any adjustments affecting the caster, the camber, or the toe-in, inspect the front end thoroughly.

1. Inspect the tires for proper inflation pressure. Refer to Tire Inflation Description in Tires and Wheels.
2. Inspect the front wheel bearing for proper adjustment. Refer to Wheel Bearing Adjustment in Front Suspension.
3. Inspect the following parts:

•	The ball joints

•	The tie rod ends

•	The relay rods

•	Correct excessive looseness before adjusting.

4. Inspect the tires and the wheels for runout. Refer to Checking Tire and Wheel Runout in Vibration Diagnosis.
5. Adjust the air cylinder pressure in order to level the vehicle with the vehicle normally loaded. Make the correction before adjusting the caster.
6. Inspect the steering gear for looseness at the frame.
7. Inspect the shock absorbers for leaks or any noticeable noise.
8. Inspect the control arms or stabilizer bar attachments for looseness.
9. Inspect the alignment equipment. Follow the manufacturer's instructions.
10. Inspect the level of the vehicle. The vehicle must be on a level surface fore and aft and transversely.

Preliminary Alignment Inspection I-Beam Front Suspension

Important: Before making any adjustments affecting the caster, the camber, or the toe-in, inspect the front end thoroughly.

1. Inspect the front wheel bearing for proper adjustment. Refer to Wheel Bearing Adjustment .
2. Inspect the following parts:

•	The ball joints

•	The tie rod ends

•	The relay rods

•	Correct excessive looseness before adjusting.

3. Inspect the tires and the wheels for runout. Refer to Tire and Wheel Vibration Vibration Diagnosis and Correction.
4. Inspect the steering gear for looseness at the frame.
5. Inspect the shock absorbers for leaks or any noticeable noise.
6. Inspect the I-Beam or the stabilizer bar attachments for looseness.
7. Inspect the alignment equipment. Follow the manufacturer's instructions.
8. Inspect the level of the vehicle. The vehicle must be on a level surface fore and aft and transversely.

Preliminary Alignment Inspection Front Wheel Alignment Rqmts.

Satisfactory vehicle operation may occur over a wide range of front wheel alignment settings. Adjustments are necessary if the settings vary beyond certain tolerances. Refer to Wheel Alignment Specifications .

Check the front and the rear weight for proper distribution. Set the front wheel alignment to specifications while the vehicle is in the normally loaded condition. Vehicles which are consistently operated with heavy loads should have alignment adjustments made with the vehicle under a heavy load. This procedure should result in longer tire life.