Usage:
772B (64W),
776B (6JC),
776C (2TK),
776D (5ER),
784B (5RK) Tractors;
775B (7XJ),
775D (6KR) Quarry Trucks;
773B (63W),
773D (7ER),
777B (4YC),
777C (4XJ),
777D (3PR),
785B (6HK) Off-Highway Trucks
- SUPPLEMENT: MAY 18 , 1998
Service Magazine SEPD0400, Article 16, Page 11, January 19, 1998; "Improved Duo-Cone Seal Retainer Used In Certain Brake Groups And Wheel Arrangements" for 772B, 776B, 776C, 776D, 784B Tractors; 775B, 775D Quarry Trucks; 773B, 773D, 777B, 777C, 777D and 785B Off-Highway Trucks.
Disregard the above listed supplement. It was published out of sequence and incorrectly referred to information contained in a former Service Magazine Article.
For most current information, a chart illustrating current seal retainer and backing plate information including 143-2703 Seal Retainer effectivity with 777D (3PR551) Off-Highway Truck is included in the following Service Magazine Article:
Service Magazine SEPD0407, Article 14, Page 12; March 9, 1998; "Updated Information For Improved Duo-Cone Seal Retainers On Certain Off-Highway Trucks."
--------------- END SUPPLEMENT ---------------
- SUPPLEMENT: APRIL 20, 1998
Service Magazine SEPD0400; Article 16, Page 11, January 19, 1998; "Improved Duo-Cone Seal Retainer Used In Certain Brake Groups And Wheel Arrangements" for 772B, 776B, 776C, 776D, 784B Tractors; 775B, 775S Quarry Trucks; 773B, 773D, 777B, 777C, 777D, 785B Off-Highway Trucks.
The article was incomplete. It should also include the following information:
The 143-2703 is effective with 777D (3PR551) Off-Highway Trucks.
--------------- END SUPPLEMENT ---------------
- SUPPLEMENT: MARCH 9, 1998
Service Magazine SEPD0400; Article 16; Page 11; January 19, 1998; "Improved Duo-Cone Seal Retainer Used In Certain Brake Groups And Wheel Arrangements".
Disregard this article and see Service Magazine SEPD0407, Article 14, Page 12 titled "Updated Information For Improved Duo-Cone Seal Retainers On Certain Off-HIghway Trucks".
--------------- END SUPPLEMENT ---------------
Description of Change: An improved Duo-Cone seal retainer is now used in certain brake groups and wheel arrangements. The improved Duo-Cone seal retainer will reduce Duo-Cone seal face load and improve Duo-Cone seal service life.
Adaptable To: The 143-2703 Duo-Cone Seal Retainer directly replaces the former 130-5406 Duo-Cone Seal Retainer. The 143-2703 is effective with 776D (5ER87) Tractors; 775D (6KR185) Quarry Trucks; 773D (7ER543), 785B (6HK793) Off-Highway Trucks and is adaptable to 772B (64W), 776B (6JC), 776C (2TK), 776D (5ER), 784B (5RK) Tractors; 775B (7XJ), 775D (6KR) Quarry Trucks; 773B (63W), 773D (7ER), 777B (4YC), 777C (4XJ), 777D (3PR) and 785B (6HK1) Off-Highway Trucks.
NOTE: To avoid damage 143-2703 Duo-Cone Seal Retainer should be used with 130-7910 Plate. The former 5T-6380 Plate can be used with the 143-2703 Duo-Cone Seal Retainer only if it is modified as shown in the following illustrations.
Illustration 1.
Location of the area on 5T-6380 Plate to be modified.
Illustration 2.
Detail A.