Removal Procedure
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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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Personal injury can result from hydraulic oil pressure and hot oil. Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system. Make sure all of the work tools have been lowered to the ground, and the oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand. |
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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 machine. 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 to collect and contain fluids in Caterpillar machines. Dispose of all fluids according to local regulations. |
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.
- Disconnect hose assemblies (2) . Remove bolts (3) and position gear motor (1) out of the way.
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| Illustration 1 | g01038185 |
- Disconnect hose assemblies (4) . Remove nuts (6) . Remove refrigerant compressor (5) and support housing (7) from the machine.
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| Illustration 2 | g01413584 |
- Remove nuts (8) , bolts (10) , and spacer (9) . Remove refrigerant compressor (5) from support housing (7) .
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| Illustration 3 | g01413587 |
- Remove drive coupling (11) from refrigerant compressor (5) .
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| Illustration 4 | g01413593 |
- Loosen setscrew (12) and remove coupler (13) from refrigerant compressor (5) .
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| Illustration 5 | g01413598 |
- Remove gasket (15) and breather (14) from support housing (7) .
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| Illustration 6 | g01413606 |
Installation Procedure
- Install gasket (15) and breather (14) to support housing (7) .
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| Illustration 7 | g01413606 |
- Install coupler (13) and setscrew (11) to refrigerant compressor (5) . Torque setscrew (12) to 6 ± 1 N·m (4 ± 0.7 lb ft).
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| Illustration 8 | g01413598 |
- Install drive coupling (11) to refrigerant compressor (5) .
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| Illustration 9 | g01413593 |
- Install refrigerant compressor (5) to support housing (7) . Install spacer (9) , bolts (10) , and nuts (8) .
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| Illustration 10 | g01413587 |
- Install refrigerant compressor (5) and support housing (7) to the machine. Install nuts (6) . Connect hose assemblies (4) .
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| Illustration 11 | g01413584 |
- Install gear motor (1) into position. Install bolts (3) . Torque bolts (3) to 30 ± 7 N·m (22 ± 5 lb ft). Connect hose assemblies (2) .
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| Illustration 12 | g01038185 |
- 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. The correct charge for the air conditioning system is 1.075 kg (2.37 lb).