HOSE 0313941 - Caterpillar

Fan Drive Belts
Note: The fan drive belts for the scraper are adjusted in the same manner as the tractor.
Illustration 1 g00101052
The fan drive belts are located in the engine compartment of the tractor. Open the access door on the right side of the engine in order to inspect the fan drive belts. The fan drive belts run on a pulley that is spring loaded. There is no adjustment for the pulley that is spring loaded. Replace the belts if the belts are worn or if the belts are damaged.Alternator Belt
Note: The alternator belt for the scraper is adjusted in the same manner as the tractor.
Illustration 2 g00101053
To adjust the alternator belt, loosen the alternator mounting bolt (1). Loosen the adjusting locknut (2) .
Turn the adjusting nut (3) until the correct belt tension is reached. Tighten the adjusting locknut (2) to the proper torque. Refer to Specifications, "Alternator Belt Tightner" for your machine.
Tighten the alternator mounting bolt (1) .
If new belts are installed, check the belt adjustment again after 30 minutes of engine operation at the rated speed.Air Conditioner Belt
Inhaling air conditioner refrigerant gas through a lit cigarette or other smoking method or inhaling fumes released from a flame contacting air conditioner refrigerant gas can cause bodily harm or death. Do not smoke when servicing air conditioners or wherever air conditioner refrigerant gas may be present.
Illustration 3 g00101037
Inspect the condition of the compressor drive belt. If the compressor drive belt is worn or the compressor drive belt is cracking replace the compressor drive belt. Check the tension on the belt. Refer to Specifications, "Belt Tension Chart" for your engine. If the belt deflection is not within the correct dimensions, continue to Step 2. If the belt deflection is correct go to Step 6.
Illustration 4 g00101038
Loosen the compressor mounting bolt (1) .
Illustration 5 g00101041
Loosen the compressor locknut (2) .
Turn the adjusting nut (3) until the correct belt tension is reached. Refer to Specifications, "Belt Tension Chart" for your engine. Tighten the compressor locknut (2) in the same manner as the alternator. Refer to Specifications, "Alternator Belt Tightner" for your machine.
Tighten the compressor mounting bolt (1) .
If poor cooling is experienced, turn off the air conditioner. Stop the engine. Consult your Caterpillar Dealer for air conditioner system service.