Removal Procedure
| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| A | FT-1114 | Vacuum Cap | 1 |
| B | 1P-1831 | Adapter | 1 |
| 4C-9633 | Puller Stud | 1 | |
| 1A-1935 | Full Nut | 1 | |
| 6V-3160 | Double Acting Cylinder | 1 | |
| 9S-5565 | Pin Puller Sleeve As | 1 | |
| 3S-6224 | Electric Hydraulic Pump Gp | 1 | |
| C | 195-4609 | Seal Pick | 1 |
Start By:
- Release the hydraulic system pressure. Refer to Disassembly and Assembly, "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 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. |
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| 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, "Caterpillar Dealer Service Tool Catalog" 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, hoses, and tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.
Note: Inspect the O-ring seals. Replace the O-ring seals that are worn or damaged.
- Connect the steering frame lock. Refer to Operation and Maintenance Manual, "Steering Frame Lock".
- Drain the cooling system coolant into a suitable container for storage or for disposal. Refer to Disassembly and Assembly, "Cooling System Coolant (ELC) - Change".
- 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.
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| Illustration 1 | g01368952 |
- Open the left side door assembly (1) .
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| Illustration 2 | g01401885 |
- Loosen clamp assembly (2) and disconnect hose (3) .
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| Illustration 3 | g01415940 |
- Remove clamp assembly (4) and position hose (3) out of the way.
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| Illustration 4 | g01415927 |
- Remove bolt (4) and remove the bushing (not shown).
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| Illustration 5 | g01416168 |
- Remove pin (5) and remove the washer (not shown).
- Disconnect hose assemblies (10) .
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| Illustration 6 | g01416266 |
- Remove bolt (9) and remove the bushing (not shown).
- Remove cotter pin (6) .
- Remove pin (7) and remove the washer (not shown).
- The weight of articulation cylinder (8) is 34 kg (75 lb). Use two people in order to remove articulation cylinder (8) .
- Use Tooling (C) in order to remove seal assemblies (11) .
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| Illustration 7 | g01416275 |
- Use Tooling (B) in order to remove bearing (12) . Repeat the process for the other side.
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| Illustration 8 | g01416277 |
Disassembly and Assembly Information
| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| D | 127-4904 | Hydraulic Cylinder Repair Stand | 1 |
| E | 1P-0510 | Driver Gp | 1 |
| F | 195-4609 | Seal Pick | 1 |
| G | 1P-0808 | Multipurpose Grease | 1 |
| H | 7M-7456 | Bearing Mount Compound | 1 |
|
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 9 | g01401445 |
(1) Apply Tooling (G) to the threads of bolt (1) .
(2) Apply Tooling (H) to wiper seal groove (2) prior to assembly.
(3) Tighten head (3) to a torque of 600 ± 130 N·m (443 ± 96 lb ft).
(4) Lubricate sealing lips with a thin covering of the lubricant that is being sealed.
Installation Procedure
| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| A | FT-1114 | Vacuum Cap | 1 |
| B | 1P-1831 | Adapter | 1 |
| 4C-9633 | Puller Stud | 1 | |
| 1A-1935 | Full Nut | 1 | |
| 6V-3160 | Double Acting Cylinder | 1 | |
| 9S-5565 | Pin Puller Sleeve As | 1 | |
| 3S-6224 | Electric Hydraulic Pump Gp | 1 | |
| I | 1P-0510 | Driver Gp | 1 |
| NOTICE |
|---|
Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
Note: Inspect all of the seals. Replace the seals that are worn or damaged.
- Use Tooling (B) in order to install bearing (12) .
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| Illustration 10 | g01416277 |
- Use Tooling (I) in order to Install seal assemblies (11) . Repeat step 1 and step 2 for the other side.
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| Illustration 11 | g01416275 |
- Use two people in order to install articulation cylinder (8) . The weight of articulation cylinder (8) is approximately 34 kg (75 lb). Install pin assembly (7) and install the washer (not shown). Install cotter pin (6) .
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| Illustration 12 | g01416266 |
- Install bolt (9) and install the bushing (not shown).
- Connect hose assemblies (10) .
- Install pin (5) and install the washer (not shown).
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| Illustration 13 | g01416168 |
- Install bolt (4) and install the bushing (not shown).
- Position hose (3) and install clamp assembly (4) .
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| Illustration 14 | g01415927 |
- Position hose (3) and install clamp assembly (2) .
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| Illustration 15 | g01415940 |
- Close left side door assembly (1) .
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| Illustration 16 | g01401885 |
- Remove Tooling (A) .
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| Illustration 17 | g01368952 |
- Check the hydraulic oil level. Refer to Operation and Maintenance Manual, "Hydraulic System Oil Level - Check".
- Fill the cooling system. Refer to Operation and Maintenance Manual, "Cooling System Coolant (ELC) - Change".
- Disconnect the steering frame lock. Refer to Operation and Maintenance Manual, "Steering Frame Lock".