PLATE 2304999 - Caterpillar

Effective July 1, 1992 regulations prohibit the venting of any refrigerant in the atmosphere. Refer to Caterpillar publication SENR3334, SENR5664 and NEDG5065 for the proper procedure, equipment and tools to reclaim refrigerant from any Caterpillar machine.
Always wear goggles when working on air conditioning systems. The system is under pressure at all times, engine running or not. Escaping refrigerant R-12 (C C12 F2 Dichloro Difluoro Methane) and refrigerant R-134A can cause freezing of human flesh.Do not smoke while working on air conditioning. Inhaling Refrigerant R-12 or R-134A through any smoking material, although not toxic or flammable, can cause violent illness. Also heat must never be applied to a charged system. See Air Conditioning And Heating Service Manual Form No. SENR3334 and SENR5664, for more information on removal and installation of lines and refrigerant from the system.
1. Release the refrigerant R-12 from the system. See Air Conditioning And Heating, Purging The System, Form No. SENR3334. 2. Loosen bolt (1) to allow the compressor to rotate. Remove nut and bolt (2).3. Rotate the air conditioner compressor and remove belt (3).4. Disconnect wire harness (4). Remove the bolt and plate that hold the two hoses (5) to the air conditioner compressor. Remove two hoses (5).5. Remove bolt (1), and remove air conditioner compressor (6).6. Remove two O-ring seals from the air conditioner compressor. The following steps are for the installation of the air conditioner compressor. See Air Conditioning And Heating Service Manual, Form No. SENR3334, for the correct procedure to charge the air conditioning system.7. Make sure the two O-ring seals are in position on the air conditioning compressor.8. Position the air conditioner compressor, and install bolt (1) and nut and bolt (2). Position the plate that holds the two hoses (5) to the air conditioner compressor and install the bolt.9. Connect wire harness (4). Install belt (3), and make an adjustment to the belt tension. Used belt tension is for a belt which has more than 30 minutes of operation at the rated speed of the engine. See the topic, V-Belt Tension Chart in the Specifications Module, for the correct belt tension.