COMPRESSOR GP-REFRIGERANT 1561878 - Caterpillar

Alternator and Air Conditioner Belts
The alternator has been moved to the front of the engine on all new machines. Refer to the text that follows for adjustment of the alternator and air conditioner belts.Adjust the Air Conditioner Belt
1. Remove the floor mat.2. Remove the retaining bolts and the floor plate. 3. Remove the belt guard. 4. Look at the condition of the belt. Replace if cracked or frayed. 5. Measure the deflection of the belt. Apply approximately 110 N (25 lb) force midway between the drive pulley and the air conditioning compressor pulley. Deflection should be 14 to 20 mm (9/16 to 13/16 inch).6. If deflection is not correct, adjust the belt. 7. Loosen the mounting bolt (1).8. Loosen the locknut (2).9. Tighten the adjusting nut (3), to move the compressor to obtain the required belt deflection.10. Tighten the locknut.11. Tighten the mounting bolt.12. Measure the belt deflection. If deflection is not correct, repeat the adjustment procedure.13. Reinstall the guard floor plate and floor mat.Adjust the Alternator Belt
Lower the engine access cover, by pulling back on the cover release, located on the inside of the cover. Look at the condition of the belts. If any one requires replacement, replace all the belts as a set.1. Loosen the mounting bolt (1).2. Loosen the locknut (2).3. Tighten the adjusting nut (3) to move the alternator until deflection is correct. Tighten the locknut.4. Tighten the mounting bolt.5. Measure the belt deflection. If deflection is not correct, repeat the adjustment procedure.