| Required Tools | |||
|---|---|---|---|
| Tool | Part Number | Part Description | Qty |
| A | 452-6006 | Grease | - |
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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. |
| NOTICE |
|---|
|
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. |
- Start the engine and fully retract the bucket cylinder and the stick cylinder. Lower the boom until the bucket is lowered onto the ground. Shut off the engine.
- Release the hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release".
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Illustration 1 g06312317 - Disconnect hose assemblies (1) and (2).
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Illustration 2 g06312370 - Remove bolt (4) and clamp (5).
- Remove tube assembly (3).
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Illustration 3 g06312371 Show/hide table
Illustration 4 g06312375 - Attach a suitable lifting device to both ends of stick cylinder (6). The weight of stick cylinder (6) is approximately
250 kg (551 lb) . - Remove bolt (8) and pin assembly (7). Remove bolt (10) and pin assembly (9).
- Remove stick cylinder (6).
- Install stick cylinder (6) in the reverse order of removal.
- Coat all bores for the pins with Tooling (A).