HOUSING-CLUTCH 6T3415 - Caterpillar

TECHNICAL INFORMATION BULLETIN November 26, 2003
PRODUCT FAMILY(Track-Type Tractor) SALES MODEL D7R (77Z, 79Z, 80Z, 5BF, 4FG, 2HR, 9HM, 2EN, 3DN, ACS, AFG, AEC, ABJ, 5KZ, ADW, AGN) D8R (7XM, 6yZ, AKA, 9EM) D9R (7TL, 8BL, ABK, ACL) D10R (3KR, AKT)
Component Code(4159)SUBJECT: ELIMINATE THE KEVLAR ROPE SEAL IN WASTE HANDLING ARRANGEMENT (WHA) IDLERS.
PROBLEM:
The Kevlar rope seal in WHA Idlers has been found to cause heat generation, which may result in idler failure.
SOLUTION:
Do not replace the Kevlar rope seal when reconditioning WHA idlers. Eliminate this part and complete the idler assembly using no replacement part. See illustration below.
Upon completing the assembly of a WHA idler with the rope seal eliminated, stamp an identification on the end of the shaft of the idler. This identification should be something identifiable to the dealer, which will allow the dealer to record and trace an inventory of idlers with this feature removed.
Rope Seal Part Numbers For WHA Idlers
Tractor Model WHA Idler Part Number Rope Seal Part Number
D10R 167-1946 166-9446
D9R 167-1947 166-3322
D8R 166-3323
166-4420
143-7734
143-7735 166-3322
166-3322
166-3322
166-3322
D7R 197-7754
198-7626
226-6701 166-3318
166-3318
166-3318COPYRIGHT 2003 CATERPILLAR
ALL RIGHTS RESERVED