Removal Procedure
Start By:
- Remove the felling head from the machine. Refer to Disassembly and Assembly Manual, "Felling Head - Remove and Install".
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Personal injury can result from hydraulic oil pressure and hot oil. Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system. Make sure all of the attachments have been lowered, oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand. |
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| 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 Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates. |
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Note: Put identification on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, all hoses, and all tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.
Note: Cleanliness is an important factor. Before the removal procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.
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| Illustration 1 | g00810170 |
- Extend the boom and place the stick on the ground, as shown.
- Release the pressure in the hydraulic system. Refer to Disassembly and Assembly, "System Pressure - Release".
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| Illustration 2 | g00807103 |
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| Illustration 3 | g00807253 |
- Remove six bolts (2) from the rear of deflector (1) that is located on the boom.
- Pull deflector (1) out of the way in order to expose the hydraulic lines.
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| Illustration 4 | g00807108 |
- Attach a hoist and a suitable lifting device to stick cylinder (3) .
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| Illustration 5 | g00837950 |
- Remove bolt (4) that holds pin (5) in place.
- Use two people to drive pin (5) out of cylinder (3). One person will drive the pin out of the cylinder. One person will support the pin.
- Use the hoist to lower stick cylinder (3) to the ground.
- Remove the hoist and the lifting device from stick cylinder (3) .
- Start the machine and slowly retract the stick cylinder.
- Stop the engine.
- Release the pressure in the hydraulic system. Refer to Disassembly and Assembly, "System Pressure - Release".
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| Illustration 6 | g00837959 |
- Disconnect nine hydraulic hoses (6) that are located on the top of the boom.
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| Illustration 7 | g00807282 |
- Disconnect two hydraulic hoses (7) and (8) that are located under the boom.
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| Illustration 8 | g00837960 |
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| Illustration 9 | g00837969 |
- Attach a hoist and suitable lifting devices to the stick, as shown. The weight of the stick and the saw cylinder is 1455 kg (3200 lb).
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| Illustration 10 | g00807091 |
- Remove bolt (10) .
- Use three people to drive pin (9) out of the stick and the boom. One person will drive the pin out of the stick and the boom. Two people will support the pin. The weight of pin (9) is 31 kg (68 lb).
- Remove the stick from the boom.
