Start By:
- Connect the steering frame lock.
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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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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, PERJ1017, "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. |
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Hydraulic oil pressure can remain in the hydraulic system on this machine after the engine and pump have been stopped. Serious injury can result if this pressure is not released before any service is done on the hydraulic systems. In order to prevent possible injury, release the hydraulic system pressure before working on any fitting, hose, or hydraulic component. Lower all attachments to the ground before service is started. If the hydraulic system must be serviced, tested, or adjusted with the attachment in the raised position, the attachments and lift cylinders must be supported properly. Always move the machine to a location away from the travel of other machines. Be sure that other personnel are not near the machine when the engine is running and tests or adjustments are being made. |
- Release the system pressure. Refer to Operation and Maintenance Manual, "System Pressure - Release".
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Illustration 1 g01397830 - Attach a suitable lifting device to centershift cylinder (1). The weight of centershift cylinder (1) is approximately
54 kg (120 lb) . - Remove bolts (3) and remove cap (2).
Note: Note the shims and inserts for installation purposes.
- Start the engine and run the engine. Use the hydraulics on the machine to retract rod assembly (4).
- Stop the engine.
Release the system pressure.
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Illustration 2 g01397838 - Disconnect hose assemblies (8).
- Remove clamp (5).
- Remove bolts (7) and remove cap (6).
Note: Note the shims and inserts for installation purposes.
- Remove centershift cylinder (1).
Disassembly and Assembly Information
| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| A | 152-4251 | Repair Stand | 1 |
| B | 195-4609 | Seal Pick | 1 |
| C | - | Loctite 648 | 1 |
| D | 1P-0808 | Multipurpose Grease | 1 |
| E | 9U-7868 | Spanner Wrench | 1 |
| 127-8064 | Adjustable Plate | 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 3 | g00932790 |
(1) Use a 46 mm socket to remove the bolt. Tighten the bolt to a torque of
(2) Lubricate sealing lips with a thin covering of the lubricant that is being sealed.
(3) Apply Tooling (C) to the seal groove prior to assembling the wiper seal.
(4) Tighten the head to a torque of
Note: Lubricate the threads of the head with Tooling (D).
| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| F | 183-3424 | Grease Cartridge | 1 |
- Attach a suitable lifting device to centershift cylinder (1). The weight of centershift cylinder (1) is approximately
68 kg (150 lb) . - Position centershift cylinder (1) on the machine.
- Apply Tooling (F) between inserts (6B) and ballstuds (6A). Install cap (6) and install bolts (7).
Note: As required, use shims (6C) to allow the socket to move freely around ballstud (6A). Assemble the same quantity of shims (6C) on both sides of ballstud (6A).
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Illustration 6 g01397830 Show/hide table
Illustration 7 g01397875 - Start the engine and run the engine. Use the hydraulics on the machine to extend rod assembly (4).
- Stop the engine.
- Apply Tooling (F) between inserts (2B) and ballstuds (2A). Install cap (2) and install bolts (3).
Note: As required, use shims (2C) to allow the socket to move freely around ballstud (2A). Assemble the same quantity of shims (2C) on both sides of ballstud (2A).
- Remove the suitable lifting device from centershift cylinder (1).
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| Illustration 4 | g01397838 |
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| Illustration 5 | g01397860 |
End By:
- Separate the steering frame lock.