3966828 DISTRIBUTION AR Caterpillar parts 320D DISTRIBUTION
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Compatible equipment models: 3966828:
EXCAVATOR 320D Caterpillar
Effective July 1, 1992 regulations prohibit the venting of any refrigerant into the atmosphere. Refer to Caterpillar publication SENR3334, SENR5664 and NEDG5065 for the proper procedure, equipment and tools to reclaim refrigerant from any Caterpillar machine.
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. Refer to the "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. Remove the refrigerant from the air conditioning system using a refrigerant reclaimer. Some of the engine compartment components have been removed for better photo illustration. 2. Put identification marks on two hose assemblies (3) for installation purposes. Disconnect hoses assemblies (3) from the air conditioning compressor. Plug the fittings in order to keep dirt out of the system.3. Put identification marks on wire assemblies (4) and (5) for installation purposes. Disconnect wire assemblies (4) and (5) from the air conditioning compressor.4. Remove bolt (1), the nut assembly and washer from the adjustment bracket.5. Remove V-belt (2) from the air conditioning compressor drive pulley.6. Remove bolt (6) and the nut from the mounting bracket. Remove the air conditioning compressor from the machine. The following steps are for the installation of the air conditioning compressor.7. Make sure that all components of the air conditioning compressor and mating components are clean prior to installing the air conditioning compressor. During the installation of the air conditioning compressor, check the condition of all O-ring seals used in the hose assemblies that were disconnected. If any of the O-ring seals are damaged, use new parts for replacement.8. Position the air conditioning compressor to its original location in the machine. Install bolt (6) and the nut in order to secure the air conditioning compressor to the mounting bracket.9. Position the air conditioning compressor to the adjustment bracket. Install bolt (1), the nut assembly and washer in order to secure the air conditioning compressor to the adjustment bracket.10. Install V-belt (2) to the air conditioning compressor drive pulley. Adjust the V-belt tension. Refer to the "Operation & Maintenance Manual" for the proper procedure in order to adjust the V-belt tension.11. Connect wire assemblies (4) and (5) to their original locations on the air conditioning compressor group.12. Connect two hose assemblies (3) to their original locations on the air conditioning compressor.13. Fill the air conditioning system with refrigerant to the correct pressure level. Refer to "SENR3334, SENR5664 and NEDG5065" for the proper filling procedure.