New Tooling Is Available For The Assembly Of the Slack Adjusters {4261}
- Off-Highway Truck/Tractor:
- 784B (S/N: 5RK1-UP)
- 784C (S/N: 2PZ1-UP)
- 785 (S/N: 8GB1-UP)
- 785C (S/N: 1HW1-UP; APX1-UP)
- 785C HAA (S/N: 5AZ1-UP)
- 793B (S/N: 1HL1-UP)
- 793C (S/N: 4AR1-UP; 4GZ1-UP; ATY1-UP)
- 797 (S/N: 5YW1-UP)
The new 209-6381 Seal Installer Gp is used to assemble the two-piece seal assembly into the large O-ring groove of the slack adjuster piston. The new tooling will increase the service life of the slack adjusters.
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| Illustration 1 | g00807480 |
(A) 207-3440 Mandrel (B) 207-3442 Seal Installer (C) 207-3444 Seal Installer Sleeve | |
The 209-6381 consists of the following three components: 207-3440 Mandrel, 207-3442 Seal Installer and 207-3444 Seal Installer Sleeve .
The following procedure demonstrates the proper use of the 209-6381 Seal Installer Gp.
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| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| A | 207-3440 | Mandrel | 1 |
| B | 207-3442 | Seal Installer | 1 |
| C | 207-3444 | Seal Installer Sleeve | 1 |
- Install seal (1) onto piston (2) .
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| Illustration 2 | g00807514 |
- Install ring (3) onto piston (2) .
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| Illustration 3 | g00807543 |
- Position Tool (A) onto piston (2), as shown. Push O-ring seal (4) down Tool (A) and into the groove of piston (2), as shown.
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| Illustration 4 | g00807548 |
- Position seal (5) onto Tool (A), as shown. Use Tool (B) to slide seal (5) down Tool (A). Seal (5) is fully installed when O-ring seal (4) is completely covered.
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| Illustration 5 | g00807554 |
- Push piston (2) into Tool (C), as shown.
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| Illustration 6 | g00807561 |
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| Illustration 7 | g00807563 |
- Stop pushing piston (2) when piston (2) is halfway inside of Tool (C). Leave piston (2) in this position for at least 1 minute.
Note: Tool (C) forces the seals inward. This will ease the installation of piston (2) .
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| Illustration 8 | g00807567 |
- After 1 minute, remove piston (2) from Tool (C) .
- Install spring (6) and spring (7) into piston housing (8) .
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| Illustration 9 | g00807572 |
- Install piston (2) into piston housing (8), as shown.
Note: Piston (2) should be installed into piston housing (8) soon after piston (2) is removed from Tool (C) .
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| Illustration 10 | g00807574 |
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