- Track-Type Tractor:
- D10 (S/N: 84W1-UP)
Improved link assemblies are now available. These improved link assemblies contain new components that were not part of the former link assemblies.
The improved link assemblies include the following new components:
- New master links
- New seal assemblies
- New thrust rings
- New lubricant
The new components in the improved link assemblies for the D10 Track-Type Tractor provide the following improvements:
- Improved sealing
- Resistance to the cracking of the master link
- Use of post turn seals.
| New Link Assemblies for the D10 Track-Type Tractor | |
|---|---|
| Former Part Number | New Part Number |
| 8E-3448 | 239-0673 Positive Pin Retention |
| 6Y-1691 | 239-0674 Non-Positive Pin Retention |
| New Components for Improved Link Assemblies for the D10 Track-Type Tractor | ||||
|---|---|---|---|---|
| List of Components | Former Part Number 8E-3448 Positive Pin Retention |
New Part Number 239-0673 Positive Pin Retention |
Former Part Number 6Y-1691 Non-Positive Pin Retention |
New Part Number 239-0674 Non-Positive Pin Retention |
| Track Link (RH) |
9W-5933 | 9W-5933 | 9W-5723 | 9W-5723 |
| Track Link (LH) |
9W-5934 | 9W-5934 | 9W-5724 | 9W-5724 |
| Track Master Link (RH) Pin End |
6Y-3441 | 239-0675 | 6Y-3443 | 239-0679 |
| Track Master Link (LH) Pin End |
6Y-3442 | 239-0676 | 6Y-3444 | 239-0680 |
| Track Master Link (RH) Bushing End |
6Y-3445 | 239-0677 | 6Y-3445 | 239-0677 |
| Track Master Link (LH) Bushing End |
6Y-3446 | 239-0678 | 6Y-3446 | 239-0678 |
| Track Bushing | 143-0746 | 143-0746 | 143-0746 | 143-0746 |
| Track Pin | 6Y-1579 | 6Y-1579 | 6Y-1578 | 6Y-1578 |
| Master Pin | Non-PPR Only | Non-PPR Only | 6Y-1577 | 6Y-1577 |
| Master Pin Retaining Ring |
Non-PPR Only | Non-PPR Only | 7G-3431 | 7G-3431 |
| PPR Retaining Ring |
6Y-0471 | 6Y-0471 | PPR-Only | PPR-Only |
| Stopper | 7G-4332 | 7G-4332 | 7G-4332 | 7G-4332 |
| Plug | 6Y-0473 | 6Y-0473 | 6Y-0473 | 6Y-0473 |
| Seal Assembly | 9U-8537 | 222-7001 | 9U-8537 | 222-7001 |
| Seal Set (92 Seal Assemblies) |
103-1078 | 239-5272 | 103-1078 | 239-5272 |
| Thrust Ring | 9W-9300 | 235-2213 | 9W-9300 | 235-2213 |
| Thrust Ring Assembly | 9W-9623 | 238-9854 (1) | 9W-9623 | 238-9854 (1) |
| Thrust Ring Set | 9W-9620 |
239-5509 (2) | 9W-9620 | 239-5509 (2) |
| Post Turn Seal (3) | 234-2953 (4) | 234-2953 | 234-2953 (4) | 234-2953 |
| Lubricant | 2P-9863 | 242-3466 (5) | 2P-9863 | 242-9863 |
| ( 1 ) | The 238-9854 Thrust Ring Assembly contains two facing rings that are already applied to the 235-2213 Thrust Ring . |
| ( 2 ) | The 239-5509 Ring (Polypropylene) contains 420 facing rings in order to service two link assemblies. |
| ( 3 ) | The post turn seal for the D10 Track-Type Tractor will not be available until the third quarter of 2004. |
| ( 4 ) | The post turn seal can be used with both former 8E-3448 Track Link Assembly and 6Y-1691 Track Link Assembly when the new 235-2213 Thrust Ring is used. |
| ( 5 ) | The 242-3466 Lubricant is for the five gallon of 75W synthetic track track lubricant. |
Changes to Components
Master Links
The master links that are used in the new 239-0673 Track Link Assembly and 239-0674 Track Link Assembly for the D10 Track-Type Tractor now match the changes to the geometry that were made to the master links for the D11R and D11N Track-Type Tractors. This change in geometry causes load distribution to occur more evenly between the teeth of the master link. As a result, there is improved resistance to the cracking of the master link. For additional information, refer to Service Magazine, SEPD0674, "New Master Links Improve Reliability and Durability".
Seal Assembly
The seal assemblies that are used in the new 239-0673 Track Link Assembly and 239-0674 Track Link Assembly contain seal lips that are made from a new material. This new material has the following characteristics: stronger, more resistant to wear, resistant to the effects of water and resistant to the effects of aging. This material has demonstrated an improvement in seal system wear in both testing in the lab and in the field.
Post Turn Seal
A post turn seal will be available for the new 239-0673 Track Link Assembly and 239-0674 Track Link Assembly for the D10 Track-Type Tractor for use at the first service interval. Post turn seals that are used at the service interval offer a new seal lip that is used against the unworn surface of the bushing end face. Post turn seals should be used on bushings with 50 percent or less grooving of the bushing end. Post turn seals are currently used on D11R and D11N Track-Type Tractors. This usage can be referenced in IRM UC03-13 or Service Magazine, SEPD0702, "New Post Turn Seals Are Now Available".
Note: The post turn seal for the D10 Track-Type Tractor will not be available until the third quarter of 2004.
Thrust Ring
The thrust ring that is used in the new 239-0673 Track Link Assembly and 239-0674 Track Link Assembly has a smaller outer diameter than the thrust ring that is used in the former link assemblies. This increases the area available for the use of the post turn seal.
A new ring set is available that has 420 polypropylene facing material coatings. This ring set is used on the new thrust rings that have a smaller diameter. Also, the new thrust ring assembly consists of the new 235-2213 Thrust Ring with the polypropylene facing material.
Lubrication
The new 239-0673 Track Link Assembly and 239-0674 Track Link Assembly are filled with synthetic 75W-140 oil. This oil has demonstrated improved wear of the internal joint and improved wear characteristics of the seal over the standard 80W-90 oil.
This oil is available through Caterpillar parts by the following part numbers:
| Lubricants | |
|---|---|
| 5 Gallon Bucket | 242-3466 |
| 55 Gallon Bucket | 242-3467 |