Removal Procedure
Start By:
- Prepare the machine for disassembly. Refer to Disassembly and Assembly, "Preparation for Disasembly".
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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. |
Note: Put identification 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: The HH65 Harvester Head is shown in this procedure. Other harvester heads are similar.
- Disconnect hydraulic hose assemblies (1) and (2) from feed roller arm cylinder (3) .
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| Illustration 1 | g00427998 |
- Support the feed roller arm with a suitable lifting sling and a hoist.
- Remove bolt (5). Remove pivot pin (4) .
- Lower the feed roller arm onto the stop. Remove the sling and the hoist.
- Remove bolt (6). Remove cover (7). The bolt that retains the pivot pin is found under cover (7) .
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| Illustration 2 | g00639577 |
- Remove lower roller (8). Refer to Disassembly and Assembly, "Lower Roller - Remove and Install". Access to the end of the pivot pin is behind lower roller (8) .
- Remove the locknut and bolt (9). The locknut and bolt (9) are located under cover (7) .
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| Illustration 3 | g00639621 |
- Support feed roller arm cylinder (3). Remove pivot pin (10) from the harvester head. Access to pivot pin (10) is from the area behind the lower roller.
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| Illustration 4 | g00428131 |
- Lift feed roller arm cylinder (3) from the harvester head. The feed roller arm cylinder weighs 6.8 kg (15 lb).