SUPPORT-TRUNNION 1254973 - Caterpillar

24Sep2014
U-550
A-412
D-495
O-470
Parts stock action only
PRODUCT IMPROVEMENT PROGRAM FOR REMOVING CERTAIN REAR CRANKSHAFT SEALS FROM DEALER PARTS STOCK
1161 7555 7750 PI70535
Caterpillar’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to Caterpillar.
When submitting claim for Parts Stock Action, Use the appropriate 99Z as the s/n, the appropriate Service Letter Program Number as the Part number in the Part Causing Failure field, "7751" as the Group Number, "56" as the Description Code.
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.
TERMINATION DATE
31Dec2014
PROBLEM
Certain rear crankshaft ceals has carrier ID scratching and seal assembly OD rippling that can cause the seal to leak.
ACTION REQUIRED
Inspect all 2854073, 2854074, 7C1728, and 1005421 Rear Crankshaft Seals in dealer parts stock.
Inspect for rear crankshaft seal date code before February 21, 2014. Refer to Image 1 for the date code location (1) and examples on how to translate the date code.
If the rear crankshaft seal is or after the date code February 21, 2014, mark the package to indicate it has been inspected according to this program and return the part to dealer parts stock.
If the rear crankshaft seal is before the date code February 21, 2014, remove the part from dealer parts stock.
Image1
SERVICE CLAIM ALLOWANCES
Submit one claim for all parts removed from dealer parts stock.
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.