| Required Tools | |||
|---|---|---|---|
| Tool | Part Number | Part Description | Qty |
| A | 504-9791 | Lift Gp (60Hz)(1) | 2 |
| OR | |||
| 504-9793 | Lift Gp (50Hz)(2) | 2 | |
| (1) | High-Voltage (480V) Low-Voltage (240V) |
| (2) | High-Voltage (400V) Low-Voltage (200V) |
Start By:
- Remove the radiator cowling. Refer to Disassembly and Assembly, "Cowling (Radiator) - Remove and Install".
| 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, PERJ1017, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products. Dispose of all fluids according to local regulations and mandates. |
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Personal injury can result from contact with refrigerant. This system is under pressure at all times, even if the engine is not running. Heat should never be applied to a charged system. 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 caution when a fitting is removed. Slowly loosen the fitting. If the system is still under pressure, evacuate the system recovering the refrigerant before removing the fitting. 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. Before any checks of the air conditioning and heating system are made, move the machine to a smooth horizontal surface. Lower all implements to the ground. Make sure the transmission is in neutral or park and that the parking brake is engaged. Keep all other personnel away from the machine or where they can be seen. |
- Before any service work is performed on the air conditioning system, refer to Air Conditioning and Heating, Testing and Adjusting, SENR5664, "Machine Preparation for Troubleshooting".
- Recover the refrigerant from the air conditioning system. Refer to Air Conditioning and Heating, Testing and Adjusting, SENR5664, "Refrigerant Recovery".
- Install caps and plugs to all connections to prevent system contamination.
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Illustration 1 g06345513 - Position Tooling (A) under the frame, as shown. Tooling (A) will ease the installation of tube assembly (1) and shims (3) during the installation procedure. Refer to Tool Operating Manual, NEHS1303, "Lift Group (Stand - 25 Ton)" for more information on Tooling (A).
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Illustration 2 g00469071 - Record the number of shims (3) for installation purposes. Shims (3) are on each end of tube assembly (1). Position a lifting sling around tube assembly (1). Secure the lifting sling to a suitable hoist. Remove eight bolts (2) and the washers that hold tube assembly (1) to the frame assembly. Remove tube assembly (1) from the machine. The weight of tube assembly (1) is
27 kg (60 lb) .Show/hide table
Illustration 3 g00472518 - Disconnect two hose assemblies (6) and (7) from condenser assembly (5).
- Use two people to remove four bolts (4), the nuts, and the hard washers from condenser assembly (5). Remove condenser assembly (5) from the plate assembly.
- Check all the O-ring seals and the components for wear or damage. Replace the components, if necessary.
- Lubricate all the O-ring seals lightly with the lubricant that is being sealed.
- Add 90mL (3 fluid oz.) of clean oil to the air conditioning system if a new condenser assembly or remanufactured condenser assembly is installed.
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Illustration 4 g00472518 - Use two people to position condenser assembly (5), as shown. Install four bolts (4), the nuts, and the hard washers.
- Connect two hose assemblies (6) and (7) to condenser assembly (5).
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Illustration 5 g06345513 - Position Tooling (A) under the frame, as shown. Tooling (A) will ease the installation of tube assembly (1) and shims (3) during the installation procedure.
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Illustration 6 g00469071 - Position a lifting sling around tube assembly (1). Secure the lifting sling to a suitable hoist. Install tube assembly (1) onto the machine. Install shims (3). Install the same amount of shims (3) that were removed. Install eight bolts (2) and the washers. The weight of tube assembly (1) is
27 kg (60 lb) . - Evacuate the air conditioning system. Refer to Air Conditioning and Heating, Testing and Adjusting, SENR5664, "Refrigerant System - Evacuate".
- Charge the air conditioning system. Refer to Air Conditioning and Heating, Testing and Adjusting, SENR5664, "Refrigerant System - Charge".
End By:
- Install the radiator cowling. Refer to Disassembly and Assembly, "Cowling (Radiator) - Remove and Install".