To shift the idler from side to side in order to align the idler and track properly, you add enough shims (4) and (5) between bearings (8) and guide plates (6) and (7) to provide clearance (A) between guide plates (6) and (7) and the frame (9).

This chapter stresses the importance of your understanding and following the principles of front-end alignment and track alignment in vehicle maintenance. Although these principles will remain the same, the make and year of the equipment assigned to your unit will change. Therefore, it is always recommended that you refer to the manufacturer's repair manual for specific adjustments for your particular equipment.

REFERENCES

Abbott, Sheldon L., and Hinerman, Ivan D., Automotive Suspension and Steering, Glencoe Publishing Co., Inc., Encino, Calif., 1976.

Anglin, Donald L., and Crouse, William H., Automotive Mechanics, 9th. ed., McGraw-Hill Book Division, New York, New York 1985.

Bacon, E. Miles, Principles of Wheel Alignment Service, 2d. ed., McGraw-Hill Book Company, New York, New York 1977.

Caterpillar Service Manual, D-7 Power Train, Caterpillar Tractor Co. Publication Division, Peoria Ill, 1973.

Crouse, William H., Automotive Mechanics, 8th ed., McGraw-Hill Book Company, New York, New York, 1980.

Extension course Institute, Air University, General Purpose Vehicle Mechanic, Gunter Air Force Station, Montgomery, Ala., 1985.

Gousha, H. M., Car Service Manual, A Division of Simon & Schuster Inc., San Jose, Calif., 1990.

U.S. Army, TM 9-Principles of Automotive Vehicles, Department of the Army, Washington D.C., 1985.