| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| A | FT-1114 | Vacuum Cap | 1 |
Start By:
- Install the retaining cable.
- Release the air system pressure.
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The space between the body and the frame becomes a zero clearance area when the body is lowered. Failure to install the retaining cable can result in injury or death to personnel working in this area. |
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Personal injury can result from hot oil or hot components. At operating temperature, oil is hot and under pressure. Hot oil can cause burns. Remove the fill cap only when the engine is stopped, and the fill cap is cool enough to touch with your bare hand. Do not allow hot oil or components to contact skin. |
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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 attachments have been lowered, 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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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, "All products Air Conditioning and Heating Systems with R-134a Refrigerant for All Caterpillar Machines" . Refer to Special Publication, NEDG2500, "Air Conditioning Tools" for the correct procedure.
- Drain the coolant into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change" for the correct draining and filling procedure.
- Turn the power disconnect switch to the OFF position.
- Install Tooling (A) onto the hydraulic tank. Attach an air supply hose onto Tooling (A). Apply
276 to 414 kPa (40 to 60 psi) . This will pull vacuum on the hydraulic system.Show/hide table
Illustration 1 g06221596 - Disconnect hose assemblies (1) and reposition hose assemblies (1) out of the way.
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Illustration 2 g06221606 - Disconnect hose assemblies (2) and reposition hose assemblies (2) out of the way.
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Illustration 3 g06221937 - Disconnect harness assemblies (3) and (4). Reposition harness assemblies (3) and (4) out of the way.
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Illustration 4 g06221942 Show/hide tablePressurized System!
Hydraulic accumulators contain gas and oil under high pressure. DO NOT disconnect lines or disassemble any component of a pressurized accumulator. All gas pre-charge must be removed from the accumulator as instructed by the service manual before servicing or disposing of the accumulator or any accumulator component.
Failure to follow the instructions and warnings could result in personal injury or death.
Only use dry nitrogen gas to recharge accumulators. See your Cat dealer for special equipment and detailed information for accumulator service and charging.
- Open door (5). Disconnect hose assembly (6) from the accumulator and reposition hose assembly (6) out of the cab.
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Illustration 5 g06222145 - Disconnect hose assemblies (7) and reposition hose assemblies (7) out of the cab.
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Illustration 6 g06222149 - Disconnect harness assembly (8) and reposition harness assembly (8) out of fender (9). Use suitable lifting device to remove fender (9). The weight of fender (9) is approximately
107 kg (236 lb) . Remove fender (9).Show/hide table
Illustration 7 g06222265 Show/hide table
Illustration 8 g06222251 Show/hide table
Illustration 9 g06222260 - Attach suitable lifting device to cab assembly (10). The weight of cab assembly (10) is approximately
2800 kg (6173 lb) .Note: Secure the hood assembly on the right side of the cab in open position to remove the pin assembly from the front right corner.
- Remove bolt (11) and pin assembly (12). Repeat this step for all other pin assemblies.
- Remove nut (13), washer (14), and bolt (15). Repeat this step for all other sides.
- Remove cab assembly (10).
- Install the cab assembly in the reverse order of removal.