Usage:
Effective July 1, 1992 regulations prohibit the venting of any refrigerant into the atmosphere. Refer to Caterpillar publication SENR3334-01, SENR5664 and NEDG5065-01 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. SENR3334-01 and SENR5664, for more information on removal and installation of lines and refrigerant from the system. |
1. Purge the air conditioning charging system. See Air Conditioning And Heating, Purging The System.
2. Disconnect the wires at refrigerant switch (1), and remove the switch.
3. Disconnect the hose assemblies at dryer (2), and put protective covers in the openings.
4. Remove dryer (2).
NOTE: The following steps are for installation of the dryer and refrigerant switch.
5. Install dryer (2).
6. Remove the protective covers, and connect the hose assemblies to the air dryer.
7. Install refrigerant switch (1), and connect the wires to it.
8. After installation of the refrigerant switch, perform the following steps: (see Air Conditioning And Heating).
a. Do complete check of compressor oil.
b. Do evacuating the system.
c. Do complete charge of the system.
d. Do performance check of air conditioning system.