Start By:
- Remove the seat. Refer to Disassembly and Assembly, "Seat - Remove" for the machine that is being serviced.
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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, "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. |
Note: Put identification marks on all hoses and on all wires for installation purposes. Plug the hoses. This will help to prevent fluid loss and this will help to keep contaminants from entering the system.
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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. |
- 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.
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Illustration 1 g00361012 Typical Example Show/hide table
Illustration 2 g00361013 Typical Example - Open access door (1) on the left side of the cab.
- Remove air filter (2).
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Illustration 3 g00694592 - Remove screws (3), cover (4), and filter (5).
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Illustration 4 g00694594 - Remove side panel (6).
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Illustration 5 g00694595 - Remove three bolts (7) from the guard.
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Illustration 6 g00694598 - Remove bolt (8) that is located in the corner.
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Illustration 7 g00694600 - Remove five bolts (9) and cover (10).
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Illustration 8 g00694602 - Remove bolt (11) and cover (12).
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Illustration 9 g00694679 - Disconnect electrical connector (13).
- Disconnect two refrigerant hoses (14) and two heater hoses (15).
- Remove four bolts (16) and coil assembly (17).
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Illustration 10 g00694680 - Disconnect four electrical connectors (18).
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Illustration 11 g00694681 Show/hide table
Illustration 12 g00694683 - Remove six bolts (19).
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Illustration 13 g00694684 - Remove three nuts (20) and cover (21).
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Illustration 14 g00694687 - Remove nut (22) and the bolt.
- Remove fan motor (23).
