FILTER 5348359 - Caterpillar

Caterpillar: Confidential Yellow
PARTS STOCK ACTION ONLY - REMOVE CERTAIN 6T7800 THRUST DISCS FROM PARTS STOCK - PI7172 - MAILED US AND CANADA, CACO, COFA, CFE L, COSA
  The information supplied in this service letter may not be valid after the termination date of this program.   Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst.
REMOVE CERTAIN 6T7800 THRUST DISCS FROM PARTS STOCK, 3150, PI7172 U-24 A-14 AU-20 C-23 E-18 O-19 parts stock action only Termination Date
June 30, 1986
Problem
Some 6T7800 Thrust Discs have an incomplete mold fill and/or a radial crack. Discs which may be unsatisfactory can be identified by a package date code of 12-85 or earlier. The 6T7800 Disc is used in powershift transmissions.
Action Required
Inspect the package of each 6T7800 Thrust Disc in parts stock. If a package has a date code of 12-85 or earlier, remove the disc from parts stock. Some dealers have already been instructed to remove the suspected discs from parts stock and hold for disposition instructions. WARRANTY ALLOWANCES Submit one claim for all 6T7800 Discs removed from parts stock.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.