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January 2005 |
D9R/N, D9L NEW AND IMPROVED MASTER LINKS
These new master links are now standard on D9R Track-Type Tractors from the factory and are available in the parts systems for D9R, D9N, D9L, and 589 machines in the field. The new geometry of the master link improves cracking resistance; a larger radius at the end of the serrated area (see arrows below) provides additional resistance to cracking, extending master link service life. The former master links are canceled and replaced by the new master links and are interchangeable with former and new master links.
Adaptability
The master link?s improved design can be used on all current D9R and non-current D9N, D9L and 589 machines in the field. The new master links are effective on the following D9R factory built machines.
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Model |
Serial Numbers |
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D9R |
ACL1082-Up |
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D9R |
ABK0951-Up |
Part Number Information
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Description |
Former Part No. |
New Part No. |
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D9R/N PPR Master Links |
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|
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Link Assembly |
199-5525 |
199-5525 |
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RH Pin End Master |
7T-2277 |
250-4245 |
|
LH Pin End Master |
7T-2278 |
250-4246 |
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RH Bushing End Master |
7T-2279 |
250-4247 |
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LH Bushing End Master |
7T-2280 |
250-4248 |
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|
|
|
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D9R/N Non PPR Master Links |
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|
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Link Assembly |
199-5531 |
199-5531 |
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RH Pin End Master |
9W-2745 |
250-4243 |
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LH Pin End Master |
9W-2746 |
250-4244 |
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RH Bushing End Master |
7T-2279 |
250-4247 |
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LH Bushing End Master |
7T-2280 |
250-4248 |
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|
|
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D9L, 589 PPR Master Links |
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|
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Link Assembly (D9L) |
199-5534 |
199-5534 |
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Link Assembly (589) |
199-5535 |
199-5533 |
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RH Pin End Master |
6Y-2883 |
250-4217 |
|
LH Pin End Master |
6Y-2884 |
250-4218 |
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RH Bushing End Master |
6Y-2885 |
250-4219 |
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LH Bushing End Master |
6Y-2886 |
250-4220 |
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|
|
|
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D9L Non PPR Master Links |
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|
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Link Assembly |
6Y-2887 |
6Y-2887 |
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RH Pin End Master |
6Y-2881 |
250-4215 |
|
LH Pin End Master |
6Y-2882 |
250-4216 |
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RH Bushing End Master |
6Y-2885 |
250-4219 |
|
LH Bushing End Master |
6Y-2886 |
250-4220 |
For Link wear chart see the CTS Handbook, 15th edition, (Media Number: PEKP9400-03).
Servicing
? See Service Magazine from December 06, 2004, (SEPD0762) ?New Master Links With Improve Reliability and Improved Durability.?
? See IRM UC 03-04, Media No. PELJ0151, ?Updated Link Assembly Identification Code Markings,? for information on the serial numbers of link assemblies.
TCRobertson
Undecarriage Marketing Division
Product Support Division
CV4111 ? Tel (309) 675-7879
E-mail: Robertson_Thomas@cat.com
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