Photo Courtesy of TACOM
You may have a hard time identifying engine parts for your M7 Forward Repair System (FRS), NSN 4940-01-533-1621, because some parts aren’t listed in TM 9-4940-568-24P (Jan 08, w/Ch 1, Jul 11).
There are three (3) different FRS generations, and the TM needs to be updated with parts information for the most recent version that’s also known as Tier 3.
Currently, the TM for that generation only includes major assemblies and limited down parts for them. Tier 3 systems are identified with a dash after the number (such as 8421-3), whereas the other generations of FRS are not (such as 8421).
Questions? Contact TACOM’s FRS group for assistance at:
By the way, your unit may need to buy sub-components that aren’t listed in the TM. If so, either contact Cummins for local purchase or order the next higher assembly.