TM 9-2320-209-20-3-2 c. Replacement and Adjustment. 1. 2. 3. 4. 5. 6. 7. Place air compressor drive belt (1) on air compressor pulley (2) and on inner groove of crankshaft pulley (3). Grasp air compressor drive belt (1) on each side of air compressor pulley (2) and lift air compressor drive belt (1) up. Turn adjusting flange (4) to the right as far as you can. Let go of air com- pressor drive belt (1). Using adjustable wrench, hold nut behind air compressor pulley (2). Using air compressor pulley adjusting wrench (5), turn adjusting flange (4) to the right until there is no slack in air compressor drive belt (1). Push on air compressor drive belt (1) at point midway between air compressor pulley (2) and crankshaft pulley (3). Air compressor drive belt (1) should give about 1/2 inch at this point. Using air compressor pulley adjusting wrench (5), turn adjusting flange (4) to right or left until air compressor drive belt (1) gives about 1/2 inch. Using 9/16-inch socket wrench with extension, screw in and tighten two screws (6). NOTE Follow-on Maintenance Action Required: Replace fan drive belts. Refer to Part 1, para 6-9. END OF TASK 13-259