| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| A | 311-1362 | Vacuum Cap | 1 |
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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 the sudden release of high pressure oil. Be sure the engine has been shut off for a minimum of five minutes to ensure that the accumulator pressure is zero. The accumulator is filled with dry nitrogen. Do not loosen or remove the valve or the cap from the top of the accumulator. |
| NOTICE |
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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
| 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, "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: Inspect the O-ring seals. Replace the O-ring seals that are worn or damaged.
- Release the system pressure.
- Connect the steering frame lock.
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Illustration 1 g01368952 - Install Tooling (A) onto the hydraulic tank. Attach an air supply hose onto Tooling (A). Apply
138 kPa (20 psi) . This procedure will pull a vacuum on the hydraulic system.Show/hide table
Illustration 2 g01380117 - Disconnect hose assembly (1). Disconnect fitting (2).
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Illustration 3 g01380124 - Attach a suitable lifting device onto articulation cylinder (3). The weight of articulation cylinder (3) is approximately
54 kg (120 lb) . Remove bolt (4). Remove pin assembly (5).Show/hide table
Illustration 4 g01380166 - Remove cotter pin (6). Remove pin assembly (7). Remove articulation cylinder (3).
Disassembly and Assembly Information
| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| C | 127-4904 | Hydraulic Cylinder Repair Stand | 1 |
| D | 1P-0510 | Driver Gp | 1 |
| E | 195-4609 | Seal Pick | 1 |
| F | 1P-0808 | Multipurpose Grease | 1 |
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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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| Illustration 5 | g01380239 |
(1) Torque for bolt ...
(1) Use a 46 mm socket in order to tighten bolt (1).
(2) Lubricate sealing lips with a thin covering of the lubricant that is being sealed.
Note: Lubricate the threads with Tooling (F) and torque head (3) to
| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| A | 311-1362 | Vacuum Cap | 1 |
| NOTICE |
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Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
- Use a suitable lifting device in order to install articulation cylinder (3). The weight of articulation cylinder (3) is approximately
54 kg (120 lb) . Install pin assembly (5). Install bolt (4). - Install pin assembly (7). Install cotter pin (6).
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Illustration 8 g01380117 - Connect fitting (2). Connect hose assembly (1).
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Illustration 9 g01368952 - Remove Tooling (A).
- Disconnect the steering frame lock.
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| Illustration 6 | g01380124 |
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| Illustration 7 | g01380166 |