SET-SEAL 4417746 - Caterpillar

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.
Note: Prior to assembling the recoil spring assembly, make sure that Tooling (A) is on a level surface.
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Check the condition of the threads on cylinder (11) and nut (6).If the threads are worn or damaged, use new parts for replacement.
Assemble the recoil spring assembly loosely. Position spring (12) onto cylinder (11). Install seal (10), seal (9), piston (8), plate (14), plate (15), and bolts (13).
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Install Tooling (C) on Tooling (B).
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Illustration 4 g06229822Note: Two adjustable supports (1), reaction plate (2), and moveable plate (3) are part of Tooling (A).
Adjust the spacing between reaction plate (2) and movable plate (3). The spacing is approximately the same length as the recoil spring assembly (free length). Also, make sure that two adjustable supports (1) are positioned between the reaction plate and the moveable plate. Level the two supports.Note: The recoil spring assembly may be installed in Tooling (A) from the end. in this case, reaction plate (2) must be removed. Then reinstall plate after the recoil spring assembly is in place on two adjustable supports.
Do not remove the hoist from the recoil spring assembly until the unit is leveled, centered and locked in the specified tooling.
The weight of the recoil spring assembly is approximately 118 kg (260lb).
Fasten a suitable lifting device to the recoil spring assembly. Put the recoil spring assembly in position on two adjustable supports (1) in Tooling (A).
Adjust the two adjustable supports to align the centerline of the recoil spring assembly with the centerline of Tooling (A).
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The hoist has been removed from the recoil spring assembly to provide a better illustration of level gauge (4).
Operate Tooling (B) and guide the end of the recoil spring assembly through the hole in traction plate (2). Put a level gauge (4) 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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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.
Close covers (7) on Tooling (A). Compress the recoil spring assembly with Tooling (B).
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Open the covers (7) on Tooling (A). Measure the compressed length of recoil spring (12). The compressed length is 325 mm (12.8 inch).
If the assembled length is not correct, close covers (7) on Tooling (A), and adjust the spring length with Tooling (B). If the length is correct, then assembly of the recoil spring assembly can be completed.
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Typical example.
Apply a rust inhibitor to the threads on the end of cylinder (11). Use Tooling (D) to install nut (6).
Attach a suitable lifting device to the recoil