PRODUCT SUPPORT PROGRAM FOR REPLACING THE OIL COOLER CORE ON CERTAIN 320D, 321D, AND 323D HYDRAULIC EXCAVATORS Caterpillar

PRODUCT SUPPORT PROGRAM FOR REPLACING THE OIL COOLER CORE ON CERTAIN 320D, 321D, AND 323D HYDRAULIC EXCAVATORS

This Program can only be administered after a failure occurs. The decision whether to apply the Program is made by the dealer. When reporting the repair, use "PS51719" as the Part Number and "7755" as the Group Number. Use "96" as the Warranty Claim Description Code and use "Z" as the SIMS Description Code.

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, "7755" as the Group Number, "56" as the Description Code.

Although this Program is to be administered as described above on the Affected Product, parts should be removed from parts stock as soon as possible.

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

Qty

1. Inspect all 265-3625 oil cooler cores that are in dealer parts stock.
- If the manufacturing date is before January, 2009 and the serial number is less than 0230, remove the 265-3625 oil cooler core from dealer parts stock.
- If the manufacturing date is equal to or after January, 2009 and the serial number is equal to or higher than 0230, return the oil cooler core to its original packaging, mark the package to indicate the part has been inspected according to PS5#### / REBE5392 and return the part to dealer parts stock.

The improved parts can be identified by the following methods.

Method (1):
The improved oil cooler core can be distinguished by the date code and the serial number shown on the part label at the side of the core. If the date code is "1090" or after and the serial number is more than 0230, the oil cooler is the improved part and should remain in dealer parts stock. Refer to Image1

Method (2):
Another method for identifying the improved oil cooler core is by the blue line marked on the flange of the top tank. Marking of the blue line was not started until May, 2009, and not all improved cores will have the blue line. Refer to Image2

Submit one claim for all parts removed from dealer parts stock.