Removal Procedure
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Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates. |
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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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Note: Put identification marks on all hoses, wires and tubes for installation purposes. Plug all hoses and tubes. This will help to prevent fluid loss and this will help to keep contaminants from entering the system.
- Lower the bowl to the ground.
- Recover the air conditioner refrigerant from the air conditioner system. Refer to Operation and Maintenance Manual, "Capacities (Refill)" for the correct charge that is used in the machine that is being serviced. Refer to Service Manual, SENR5664, "Air Conditioning and Heating Systems with R-134a Refrigerant" for the procedure. Refer to Special Publication, NEDG5065, "Air Conditioning Tools" for the tools.
- Open access panel door (1) on the front of the cab.
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| Illustration 1 | g01020132 |
- Remove bolts (2) from cover (3). Remove cover (3) .
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| Illustration 2 | g01020133 |
- Remove bolts (4) from cover (6). Remove cover (6) .
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| Illustration 3 | g00794833 |
- Carefully remove capillary tube (5) from evaporator coil (7) after removing cover (6) .
- Disconnect hose assemblies (8) and (9) from evaporator coil (7) .
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| Illustration 4 | g00794859 |
- Remove bolts (10). Remove evaporator coil (7) .
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| Illustration 5 | g00794882 |
Installation Procedure
- Position evaporator coil (7) and tighten bolts (10) .
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| Illustration 6 | g00794882 |
- Connect hose assemblies (8) and (9) to evaporator coil (7) .
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| Illustration 7 | g00794859 |
- Carefully install capillary tube (5) to evaporator coil (7) .
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| Illustration 8 | g00794833 |
- Install bolts (4). Install cover (6) .
- Install bolts (2). Install cover (3) .
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| Illustration 9 | g00794815 |
- Close access panel door (1) on the front of the cab.
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| Illustration 10 | g00794802 |
- Charge the air conditioner system. Refer to Operation and Maintenance Manual, "Capacities (Refill)" for the correct charge that is used in the machine that is being serviced. Refer to Service Manual, SENR5664, "Air Conditioning and Heating Systems with R-134a Refrigerant" for the procedure. Refer to Special Publication, NEDG5065, "Air Conditioning Tools" for the tools.