BASE 6N7624 - Caterpillar

Introduction
The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.Problem
A handful of NRS coolers that have been analyzed have shown evidence of Chlorine Corrosion. Further analysis of the applications and sites have proven the chlorine gas is coming in through the air intake system. Chlorine gas cannot be filtered from the incoming air stream. The impacts of chlorine gas, although worse on the NRS cooler, affect the life of any engine. Signs of chlorine ingestion will include low hour NRS cooler failures, repeat failures, and increased wear metals in the SOS samples. Specifically the combination of high Iron, Aluminum, and Chromium (FE,CR,AL) point to the possibility of this issue.Solution
If you receive SOS samples with these elements elevated, submit a Global Dealer Solution Network (GDSN) Service Technical support request with the SOS samples attached.