Assembly Procedure
| Required Tools | |||
|---|---|---|---|
| Tool | Part Number | Part Description | QTY |
| A | 4C-9540 | Recoil Spring Bench | 1 |
| B | 146-2457 | Hydraulic Power Supply Gp | 1 |
| 223-3506 | Hydraulic Cylinder and Lines Gp | 1 | |
| C | 8S-9971 | Adapter | 1 |
| D | FT-3115 | Socket | 1 |
- Check the condition of the threads on cylinder (9) and nut (7) . If the threads are worn or damaged, use new parts for replacement.
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The spring of the recoil spring assembly is compressed under several tons of force. Do not attempt to compress or release the tension of the spring with the nut on the end of the retaining rod. Damaged threads on the retaining rod or nut can cause the assembly to come apart with force, resulting in injury or death. |
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Note: Prior to assembling the recoil spring assembly, make sure that Tooling (A) is on a level surface.
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| Illustration 1 | g02160822 |
- Assemble the recoil spring assembly loosely. Position spring (10) and plate (11) onto cylinder (9) .
- Install Tooling (C) on Tooling (B) .
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| Illustration 2 | g00483426 |
- Adjust the spacing between reaction plate (3) and movable plate (4) so that the spacing is approximately the same length as the recoil spring assembly. Also, make sure that two adjustable supports (2) are positioned between the reaction plate and the movable plate, as shown. Level the two supports.
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| Illustration 3 | g02160893 |
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| Illustration 4 | g02160909 |
Note: Two adjustable supports (2) , reaction plate (3) , and movable plate (4) are part of Tooling (A) .
- The combined weight of the recoil spring assembly is approximately 79 kg (175 lb).
Note: The recoil spring assembly may be installed in Tooling (A) from the end. In this case, reaction plate (3) must be removed. Then reinstall the reaction plate after the recoil spring assembly is in place on two adjustable supports (2) .
| NOTICE |
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Do not remove the hoist from the recoil spring assembly until the unit is leveled, centered and locked in the specified tooling. |
- Fasten a suitable lifting device to the recoil spring assembly. Put the recoil spring assembly in position on two adjustable supports (2) in Tooling (A) .
- Adjust the two adjustable supports in order to align the centerline of the recoil spring assembly with the centerline of Tooling (A) .
- Operate Tooling (B) and guide the end of the recoil spring assembly through the hole in reaction plate (3) . Put a level gauge (5) on the recoil spring assembly. Make sure that the recoil spring assembly is level and centered in Tooling (A) . Remove the suitable lifting device from the recoil spring assembly.
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| Illustration 5 | g02161442 |
The hoist has been removed from the recoil spring assembly in order to provide a better illustration of level gauge (4) . | |
- Close covers (8) on Tooling (A) . Compress the recoil spring assembly with Tooling (B) .
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| Illustration 6 | g02160899 |
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| Illustration 7 | g02160821 |
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Improper assembly of parts that are spring loaded can cause bodily injury. To prevent possible injury, follow the established assembly procedure and wear protective equipment. |
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- Open the covers on Tooling (A) . Install nut (7) . Tighten nut (7) with Tooling (D) . Tighten the nut until the spring pin hole in the cylinder and nut (7) align with each other.
- If the spring pin holes are not aligned with each other, close covers (8) on Tooling (A) , and adjust the spring length with Tooling (B) . If the assembled length is correct, then assembly of the recoil spring assembly can be completed.
- Attach a suitable lifting device to the recoil spring assembly, and remove the recoil spring assembly from Tooling (A) . The weight of the recoil spring assembly is approximately 79 kg (175 lb).
- Use a suitable hammer and punch to install spring pin (1) .
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| Illustration 8 | g02160900 |
End By: Install the front idler, recoil spring, and hydraulic track adjuster.