Start By:
- Release the hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release".
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Cylinders equipped with lock valves can remain pressurized for very long periods of time, even with the hoses removed. Failure to relieve pressure before removing a lock valve or disassembling a cylinder can result in personal injury or death. Ensure all pressure is relieved before removing a lock valve or disassembling a cylinder. |
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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 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 Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates. |
Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, all hoses and all tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.
- Remove the nuts (2), the rod (3), and the pin (1).
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Illustration 2 g00780120 - Remove bolts (4) and the nuts.
- Remove trunnion (5).
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Illustration 3 g00780183 Show/hide table
Illustration 4 g01088750 - Disconnect hose assemblies (6).
- Disconnect hose assembly (8) and clamp (7).
- Attach a suitable lifting device to swing cylinder (9).
- Remove the swing cylinder (9). The weight of the swing cylinder is approximately
34 kg (75 lb) . - Perform the following steps in order to remove the other swing cylinder:
- Repeat Steps 1, 2, and 3.
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Illustration 5 g00780124 Show/hide table
Illustration 6 g00780329 - Disconnect hose assemblies (6).
- Disconnect hose assembly (8) and clamp (7).
- Repeat Steps 6, and 7.
- Repeat Steps 1, 2, and 3.
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| Illustration 1 | g00780110 |
| 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 Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates. |
Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, all hoses and all tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.
- Place swing cylinder (9) in position on the machine. The weight of swing cylinder (9) is approximately
34 kg (75 lb) . - Connect hose assembly (8) and clamp (7).
- Connect hose assemblies (6).
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Illustration 8 g00780120 - Place trunnion (5) in position on the machine.
- Install bolts (4) and the nuts. Tighten bolts (4) to a torque of
400 ± 60 N·m (300 ± 40 lb ft) . Turn bolts (4) by an additional 120° ± 5°.Show/hide table
Illustration 9 g00780110 - Install pin (1), rod (3) and nuts (2). Tighten the nuts to a torque of
50 ± 10 N·m (37 ± 7 lb ft) . - Perform the following steps in order to install the other swing cylinder:
- Place swing cylinder (9) in position on the machine.
- Connect hose assembly (8) and clamp (7).
- Connect hose assemblies (6).
- Repeat Steps 4, 5, and 6.
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Illustration 10 g00780124 Show/hide table
Illustration 11 g00780329
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| Illustration 7 | g01088750 |