Removal Procedure
Start By:
- Remove the grapple jib boom.
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Table 1
| Required Tools |
| Tool |
Part Number |
Description |
Qty |
| A |
1U-7505 |
Jack |
1 |
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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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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 to the ground, and the 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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- Use the following procedure to release the pressure in the hydraulic system:
- Lower the attachments to the ground.
- Shut off the engine.
- Move the control levers through the full travel distance of the levers. This will relieve any pressure in the pilot system.
- Slowly loosen the filler cap on the hydraulic oil tank in order to release the pressure.
- Tighten the filler cap on the hydraulic oil tank.
- The pressure in the hydraulic system has now been relieved. Lines and components can now be removed.
Note: Put identification on all lines, hoses, wires, and tubes for installation purposes. Install a cap or plug on all lines, hoses, and tubes that are disconnected. The caps and/or plugs prevent the loss of fluid and contaminants cannot enter the system.
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| Illustration 1 | g00637215 |
- Install Tool (A) under the bottom guard. Remove bolts (1) and bottom guard (2) .
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| Illustration 2 | g00637216 |
- Attach lifting straps and a suitable lifting device to main boom (3) .
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| Illustration 3 | g00637217 |
- Disconnect hose assemblies (4), (5), (6), and (7). Remove the fittings from the control valve.
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| Illustration 4 | g00637218 |
- Disconnect hose assemblies (8) and (9) from the control valve.
- Remove four bolts (10) that hold valve body (11) to the saddle assembly.
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| Illustration 5 | g00637219 |
- Disconnect hose assemblies (12) from valve body (11) .
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| Illustration 6 | g00637220 |
- Remove the bolt, retainer (13), and boom cylinder pin (14) .
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| Illustration 7 | g00637222 |
- Remove the bolt, retainer (15), boom pin (16), and the shims. Remove grapple main boom (3). The approximate weight of the boom is 680 kg (1500 lb).
