Removal Procedure
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Effective July 1, 1992 regulations prohibit the venting of any refrigerant into the atmosphere. Refer to Caterpillar publications Service Manuals, SENR3334, SENR5664, and NEDG5065 for the proper procedure, the proper equipment, and the proper tools needed in order to reclaim refrigerant from any Caterpillar equipment. |
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Personal injury can result from contact with refrigerant. Contact with refrigerant can cause frost bite. Keep face and hands away to help prevent injury. Protective goggles must always be worn when refrigerant lines are opened, even if the gauges indicate the system is empty of refrigerant. Always use precaution when a fitting is removed. Slowly loosen the fitting. If the system is still under pressure, release it slowly in a well ventilated area. Personal injury or death can result from inhaling refrigerant through a lit cigarette. 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 refrigerant gas may be present. Use a certified recovery and recycling cart to properly remove the refrigerant from the air conditioning system. |
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- Evacuate the air conditioning system.
- Remove ten bolts and washers (1). Remove cover (2) .
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| Illustration 1 | g00536151 |
- Disconnect electrical connector (5). Remove two bolts and washers (4). Remove fans (3) .
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| Illustration 2 | g00536152 |
- Disconnect two wires (6). Remove two nuts and washers (8). Position control box (7) out of the way.
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| Illustration 3 | g00536153 |
- Disconnect two hoses (10) from evaporator core (9). Remove two bolts and washers (11). Remove the evaporator core from the machine.
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| Illustration 4 | g00536154 |
Installation Procedure
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Personal injury or death can result when charging an air conditioning system with a liquid. The compressor will pump the refrigerant back into the charging cylinder with the possibility of rupturing (exploding) the cylinder. Do not operate the engine when charging with a liquid. Never charge liquid or gas through the discharge (high side of the system) with the engine running. Keep all other personnel either away from the machine or where they can be seen when working on the air conditioning system. |
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- Install the evaporator core to the machine. Install two washers and bolts (11). Connect two hoses (10) to evaporator core (9).
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| Illustration 5 | g00536154 |
- Reposition control box (7). Install two washers and nuts (8). Connect two wires (6) .
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| Illustration 6 | g00536153 |
- Install fans (3). Install two washers and bolts (4). Connect electrical connector (5) .
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| Illustration 7 | g00536152 |
- Install cover (2). Install ten washers and bolts (1) .
Note: Refer to the Operation and Maintenance Manual for all fluid capacities and the proper filling procedures.
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| Illustration 8 | g00536151 |