BLADE-SAW 2566617 - Caterpillar

Effective July 1, 1992 regulations prohibit the venting of any refrigerant into the atmosphere. Refer to Caterpillar publication 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-134A can cause freezing of human flesh.Do not smoke while working on air conditioning. Inhaling Refrigerant 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. SENR5664, for more information on removal and installation of lines and refrigerant from the system.
1. Using the proper procedure recover the refrigerant from the system. 2. Open access door (1). 3. Disconnect lines (3) from evaporator coil (2). 4. Disconnect the wires (5) from the switch (4). 5. Remove bolt (6) and bolt (7). 6. Remove access panel (8) and filter (9). 7. Remove bolt (10) and bolt (11).8. Remove air conditioning evaporator coil (2) through access panel (1). 9. Remove screws (12). Remove switch (4) by removing the thermostat probe (13). 10. Remove bolts (14) and plate (15). Use care when removing and installing the air conditioning evaporator. The core of the evaporator is made of soft metal and can be damaged or punctured very easily. For installation of the air conditioning evaporator, reverse the removal steps. Check all O-rings for damage and replace where necessary. Some models may be equipped with quick disconnect couplings. If this is the case, it will not be necessary to evacuate and recover the refrigerant. If the machine is not equipped with quick disconnect couplings, plug and cap the air conditioning lines leading to and from the evaporator. This will prevent moisture from entering the system. For charging the air conditioning system refer to Form No. SENR5664.