| Required Tools | |||
|---|---|---|---|
| Tool | Part Number | Part Description | Qty |
| A | 8S-7640 | Stand | 2 |
| 8S-7631 | Tube | 2 | |
| 8S-8048 | Saddle | 2 | |
| 8S-7615 | Pin | 2 | |
| B | 350-7768 | Electric Hydraulic Pump (115V)(1) | 1 |
| 141-1785 | Receiving Sleeve | 1 | |
| 137-8460 | Puller Stud | 1 | |
| 9U-5346 | Nut | 1 | |
| 6V-3175 | Hydraulic Cylinder | 1 | |
| (1) | 350-7769 Electric Hydraulic Pump (230V) is available. |
Start By:
- Remove the stick.
- Release the system pressure.
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|
When you are using hydraulic cylinders and puller studs, always ensure that the rated capacity of the puller stud meets or exceeds the rated capacity of the hydraulic cylinder. If the puller stud does not meet or exceed the rated capacity of the hydraulic cylinder, a sudden failure of the puller stud could occur. The sudden failure of the puller stud could result in personal injury or death. |
| 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. |
|
|
At operating temperature, the hydraulic oil is hot and under pressure. Hot oils can cause burns. To prevent possible personal injury, release the pressure in the work tool hydraulic circuit (boom, stick, bucket, and swing), travel circuits, and the hydraulic oil tank at the filler cap before any hydraulic lines or components are disconnected or removed. Remove the filler cap only when the engine is stopped and the filler cap is cool enough to touch. |
- Drain the hydraulic oil. Refer to Operation and Maintenance Manual, "Hydraulic System Oil - Change" for the correct draining procedure.
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Illustration 1 g01348609 - Disconnect hose assemblies (1) and disconnect harness assembly (2).
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Illustration 2 g01348621 - Disconnect grease hose assembly (3).
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Illustration 3 g01348630 - Attach a suitable lifting device to boom cylinder (5). The weight of boom cylinder (5) is approximately
285 kg (630 lb) . - Remove bolts (4) and remove retainer plate (6).
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Illustration 4 g01348633 - Remove spacer (7).
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Illustration 5 g01348635 - Use a hammer and a punch to remove the pin from the rod end of boom cylinder (5).
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Illustration 6 g01348639 - Position Tooling (A) so that boom cylinder (5) will be supported in a horizontal position. Lower boom cylinder (5) to Tooling (A).
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Illustration 7 g01348645 - Remove shim (8).
- Repeat for the opposite side.
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Illustration 8 g01348653 - Remove bolts (9) and remove panel (10).
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Illustration 9 g01348675 - Remove panels (11), (12), and (13).
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Illustration 10 g01348684 - Remove support (14).
- Remove sensor (15) and bolt (16). Position sensor (15) out of the way.
- Remove bolt (17).
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Illustration 11 g01348695 - Attach a suitable lifting device to boom (18). The weight of boom (18) and the stick cylinder is approximately
1635 kg (3600 lb) . Apply slight lifting tension to boom (18).Show/hide table
Illustration 12 g01348698 - Attach a suitable lifting device to Tooling (B). Remove pin (19). The weight of Tooling (B) and pin (19) is approximately
159 kg (350 lb) . Remove pin (19) and remove all shims. - Remove boom (18) from the machine. The weight of boom (18) and the stick cylinder is approximately
1635 kg (3600 lb) .
