Type "A" Assembly Procedure (Hex Nut)
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Table 1
| 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) |
4C-4469 |
Socket |
1 |
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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 | g00710664 |
- Check the condition of the threads on hydraulic track adjuster (12) and nut (6) . If the threads are worn or damaged, use new parts for replacement.
- Assemble the recoil spring assembly loosely. Install spring (10) , hydraulic track adjuster (12) , plate (11) , and support (9) .
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| Illustration 2 | g00483426 |
- Install Tooling (C) on Tooling (B) .
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| Illustration 3 | g00494710 |
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| Illustration 4 | g00483437 |
Note: Two adjustable supports (1) , reaction plate (2) , and movable plate (3) are part of Tooling (A) .
- Adjust the spacing between reaction plate (2) and movable plate (3) so that the spacing is approximately the same length as the recoil spring assembly. Also, make sure that two adjustable supports (1) are positioned between the reaction plate and the movable plate, as shown. 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 the reaction plate after the recoil spring assembly is in place on two adjustable supports (1) .
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| 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. |
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- The combined weight of the recoil spring assembly and the hydraulic track adjuster is approximately 120 kg (265 lb).
- Fasten a hoist 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 in order to align the centerline of the recoil spring assembly with the centerline of Tooling (A) .
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| Illustration 5 | g00498760 |
The hoist has been removed from the recoil spring assembly in order 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 reaction 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 hoist from the recoil spring assembly.
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| Illustration 6 | g00498784 |
- Close covers (7) on Tooling (A) . Compress the recoil spring assembly with Tooling (B) .
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| Illustration 7 | g00712121 |
(X) Compressed length of the spring
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- Open the covers on Tooling (A) . Measure the assembled length of the recoil spring. The compressed length (X) must be 517 ± 1.5 mm (20.4 ± 0.06 inch).
- If the assembled length is not correct, close covers (7) on Tooling (A) , and adjust the spring length with Tooling (B) . If the assembled length is correct, the assembly of the recoil spring assembly can be completed.
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| Illustration 8 | g00711947 |
- Apply a rust inhibitor to the threads on the end of the retaining rod for the recoil spring. Install the washer and nut (6) . Tighten nut (6) with Tooling (D) .
- Put 9S-3263 Thread Lock Compound on the threads of the two socket head bolts that hold strip (8) in place. Install the strip and the two socket head bolts that hold the strip.
- Fasten a hoist to the recoil spring assembly, and remove the recoil spring assembly from Tooling (A) . The combined weight of the recoil spring assembly and the hydraulic track adjuster is approximately 120 kg (265 lb).
End By:
Install the front idler, the recoil spring and the hydraulic track adjuster. Refer to Disassembly and Assembly, "Front Idler, Recoil Spring and Hydraulic Track Adjuster - Remove and Install" in this manual.
Type "B" Assembly Procedure (Cylindrical Nut)
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Table 2
| Required Tools |
| Tool |
Part Number |
Part Description |
Qty |
| (A) |
4C-9540 |
Bench |
1 |
| (B) |
146-2457 |
Hydraulic Power Supply Gp |
1 |
| 223-3506 |
Hydraulic Cylinder and Lines Gp |
1 |
| (C) |
8S-9971 |
Adapter |
1 |
| (D) |
142-4212 |
Spanner Socket |
1 |
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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 9 | g00710664 |
- Check the condition of the threads on hydraulic track adjuster (12) and nut (6) . If the threads are worn or damaged, use new parts for replacement.
- Install the hydraulic track adjuster in the retaining rod for the recoil spring.
- Assemble the recoil spring assembly loosely. Install spring (10) , hydraulic track adjuster (12) , plate (11) , and support (9) .
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| Illustration 10 | g00483426 |
- Install Tooling (C) on Tooling (B) .
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| Illustration 11 | g00494710 |
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| Illustration 12 | g00483437 |
Note: Two adjustable supports (1) , reaction plate (2) , and movable plate (3) are part of Tooling (A) .
- Adjust the spacing between reaction plate (2) and movable plate (3) so that the spacing is approximately the same length as the recoil spring assembly. Also, make sure that two adjustable supports (1) are positioned between the reaction plate and the movable plate, as shown. 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 the reaction plate after the recoil spring assembly is in place on two adjustable supports (1) .
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| NOTICE |
|---|
Do not remove the hoist from the recoil spring assembly until the unit is leveled, centered and locked in the specified tooling. |
|
- The combined weight of the recoil spring assembly and the hydraulic track adjuster is approximately 120 kg (265 lb).
- Fasten a hoist 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 in order to align the centerline of the recoil spring assembly with the centerline of Tooling (A) .
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| Illustration 13 | g00498760 |
The hoist has been removed from the recoil spring assembly in order 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 reaction 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 hoist from the recoil spring assembly.
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| Illustration 14 | g00498784 |
- Close covers (7) on Tooling (A) . Compress the recoil spring assembly with Tooling (B) .
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| Illustration 15 | g00712121 |
(X) Compressed length of the spring
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- Open the covers on Tooling (A) . Measure the assembled length of the recoil spring. The compressed length (X) must be 517 ± 1.5 mm (20.4 ± 0.06 inch).
- If the assembled length is not correct, close covers (7) on Tooling (A) , and adjust the spring length with Tooling (B) . If the assembled length is correct, the assembly of the recoil spring assembly can be completed.
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| Illustration 16 | g00858860 |
- Apply a rust inhibitor to the threads on the end of the retaining rod for the recoil spring. Install the washer and nut (6) . Tighten nut (6) with Tooling (D) .
- Put 9S-3263 Thread Lock Compound on the threads of the two socket head bolts that hold strip (8) in place. Install the strip and the two socket head bolts that hold the strip.
- Fasten a hoist to the recoil spring assembly, and remove the recoil spring assembly from Tooling (A) . The combined weight of the recoil spring assembly and the hydraulic track adjuster is approximately 120 kg (265 lb).
- Check the inside of support (9) . Make sure that the support is clean and free of dirt and debris.
- Assemble the recoil spring assembly loosely. Install the retaining rod for the recoil spring and cylinder (12) in plate (11) , spring (10) and support (9) .
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| Illustration 17 | g00483435 |
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| Illustration 18 | g00483437 |
Note: Two adjustable supports (1) , reaction plate (2) and movable plate (3) are part of Tooling (A) .
- Adjust the spacing between reaction plate (2) and movable plate (3) so that the spacing is approximately the same length as the recoil spring assembly. Make sure that two adjustable supports (1) are positioned between the reaction plate and the movable plate, as shown. Level the two supports.
Note: Do not remove the hoist from the recoil spring assembly until the unit is leveled, centered, and locked in Tooling (A) .
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 the reaction plate after the recoil spring assembly is in place on two adjustable supports (1) .
- The combined weight of the recoil spring assembly and the hydraulic track adjuster is 120 kg (265 lb). Fasten a hoist 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 until the centerline of the recoil spring assembly and the centerline of Tooling (A) are aligned.
- Operate Tooling (B) , and guide the end of the recoil spring assembly through the hole in reaction plate (2) . Make sure that the recoil spring assembly is leveled and centered in Tooling (A) . Remove the hoist from the recoil spring assembly.
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| Illustration 19 | g00483438 |
- Close covers (6) on Tooling (A) . Compress the recoil spring assembly with Tooling (B) . Open the covers on Tooling (A) , and measure the assembled length of the recoil spring. The compressed spring length must be 517 ± 1.5 mm (20.4 ± .06 inch). If the assembled length is not correct, close covers (6) on Tooling (A) , and adjust the spring length with Tooling (B) . If the assembled length is correct, the assembly of the recoil spring assembly can be completed.
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| Illustration 20 | g00370539 |
- Apply a rust inhibitor to the threads on the end of the retaining rod for the recoil spring. Install the washer and nut (8) . Tighten nut (8) with Tooling (C) .
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| Illustration 21 | g00370538 |
- Fasten a hoist to the recoil spring assembly, and remove the recoil spring assembly from Tooling (A) . Put 9S-3263 Thread Lock Compound on the threads of the two socket head bolts that hold strip (7) in place. Install the strip and the two socket head bolts that hold the strip.
End By:
Install the front idler, the recoil spring and the hydraulic track adjuster. Refer to Disassembly and Assembly, "Front Idler, Recoil Spring and Hydraulic Track Adjuster - Remove and Install" in this manual.
