KNOB 3835712 - Caterpillar

02Oct2018
U-552
A-402
D-480
O-489
Parts stock action only
PRODUCT IMPROVEMENT PROGRAM FOR INSPECTING AND POSSIBLY REMOVING CERTAIN 245-4621, 245-4622, 342-4863, AND 342-4864 AFTERCOOLER CORES FROM DEALER PARTS STOCK
7750 PI70722
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
31Oct2019
PROBLEM
Certain aftercooler cores could have possibly been manufactured incorrectly and may be missing the internal baffle. The missing baffle separates the inlet and outlet ports, which can result in high inlet air temperatures due to poor coolant flow in the aftercooler.
ACTION REQUIRED
Inspect all 245-4621, 245-4622, 342-4863, and 342-4864 Aftercooler Cores in dealer parts stock.
Inspect to ensure the internal baffle is present.
If the baffle is present, then mark the packaging as inspected and place the part back into dealer parts stock.
If the baffle is not present, then remove the part from dealer parts stock.
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.