Removal Procedure
Start By:
- Remove the seat. Refer to Disassembly and Assembly, "Seat - Remove and Install".
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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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| NOTICE |
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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 Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates. |
Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.
Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, hoses, and tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.
- Recover the air conditioner refrigerant from the air conditioner system. Refer to Service Manual, SENR5664, "Air Conditioning and Heating Systems with R-134a Refrigerant" for the correct procedure. Refer to Special Publication, NEDG5065, "Air Conditioning Tools" for the correct tools.
- Drain the coolant from the cooling system into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change".
- Open access door (1) .
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| Illustration 1 | g01178997 |
- Remove bolts (2) .
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| Illustration 2 | g01179008 |
- Remove switch assemblies (3) and disconnect the harness assemblies. Remove knob (4) and the nut. Remove duct assembly (5) .
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| Illustration 3 | g01179031 |
- Remove support assembly (6) .
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| Illustration 4 | g01179036 |
- Disconnect harness assemblies (7). Disconnect hoses (8) and hose assemblies (9) .
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| Illustration 5 | g01179057 |
- Remove heater assembly (10) .
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| Illustration 6 | g01179092 |
- Remove cover (11) and filter (12) .
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| Illustration 7 | g01179358 |
- Reposition capillary tube (14) and remove evaporator core (13) .
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| Illustration 8 | g01179461 |
Installation Procedure
| NOTICE |
|---|
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 Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates. |
Note: Cleanliness is an important factor. Before the assembly procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.
- Position evaporator core (13) and reposition capillary tube (14) .
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| Illustration 9 | g01179461 |
- Install cover (11) and filter (12) .
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| Illustration 10 | g01179358 |
- Position heater assembly (10) .
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| Illustration 11 | g01179092 |
- Connect hoses (8) and hose assemblies (9). Connect harness assemblies (7) .
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| Illustration 12 | g01179057 |
- Install support assembly (6) .
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| Illustration 13 | g01179036 |
- Position duct assembly (5). Connect the harness assemblies and install switch assemblies (3). Install knob (4) and the nut.
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| Illustration 14 | g01179031 |
- Install bolts (2) .
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| Illustration 15 | g01179008 |
- Close access door (1) .
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| Illustration 16 | g01178997 |
- Fill the cooling system. Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change".
- Charge the air conditioner system. Refer to Service Manual, SENR5664, "Air Conditioning and Heating Systems with R-134a Refrigerant" for the correct procedure. Refer to Special Publication, NEDG5065, "Air Conditioning Tools" for the correct tools.
End By: Install the seat. Refer to Disassembly and Assembly, "Seat - Remove and Install".