Removal Procedure
Start By:
- Remove the hydraulic tank. Refer to Disassembly and Assembly, "Hydraulic Tank - Remove".
Note: Put identification marks on all hoses, on all hose assemblies, on all wires, and on all tube assemblies for installation purposes. Plug all hose assemblies and all tube assemblies. This helps to prevent fluid loss, and this helps to keep contaminants from entering the system.
Note: Cleanliness is an important factor. Before you begin the removal procedure, the exterior of the components should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.
| 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. |
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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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- 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 procedure. Refer to Dealer Service Tool Catalog, NENG2500, "Air Conditioning Tools" for the correct tools.
- Remove tube (2) and hoses (1) .
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| Illustration 1 | g01335445 |
- Disconnect harness assemblies (3) and remove all mounting hardware.
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| Illustration 2 | g01335447 |
- Remove bracket (4) .
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| Illustration 3 | g01335452 |
- Disconnect hose assemblies (5) and (6) .
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| Illustration 4 | g01335462 |
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| Illustration 5 | g01335470 |
- Remove mounting brackets (7) . Remove bolts (9) and refrigerant condenser (8) .
Note: The refrigerant condenser must be removed through the rear of the machine.
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| Illustration 6 | g01335477 |
Installation Procedure
Note: Cleanliness is an important factor. Before assembly, thoroughly clean all parts in cleaning fluid. Allow the parts to air dry. Do not use wiping cloths or rags to dry parts. Lint may be deposited on the parts which may cause trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement. Dirt and other contaminants can damage the precision component. Perform assembly procedures on a clean work surface. Keep components covered and protected at all times.
Note: Check the O-ring seals, the gaskets, and the seals for wear or for damage. Replace the components, if necessary.
| 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. |
- Position refrigerant condenser (8) . Install bolts (9) and mounting brackets (7) .
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| Illustration 7 | g01335477 |
- Connect hose assemblies (5) and (6) .
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| Illustration 8 | g01335462 |
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| Illustration 9 | g01335470 |
- Install bracket (4) .
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| Illustration 10 | g01335452 |
- Connect harness assemblies (3) and install all mounting hardware.
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| Illustration 11 | g01335447 |
- Install hoses (1) and tube (2) .
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| Illustration 12 | g01335445 |
- Charge the air conditioner system. Refer to Service Manual, SENR5664, "Air Conditioning and Heating Systems with R-134a Refrigerant" for the procedure. Refer to Dealer Service Tool Catalog, NENG2500, "Air Conditioning Tools" for the correct tools.
End By: Install the hydraulic tank. Refer to Disassembly and Assembly, "Hydraulic Tank - Install".