M2/M3 BFV: TROUBLESHOOTING - OD1610 - LESSON 1/TASK 1
(b) Talk to the Operator.
The next step in verifying that the
malfunction exists is to talk to the operator/crew for that vehicle or piece
of equipment. This is important as the operator/crew can provide valuable
information about what the vehicle or equipment was doing at the time the
malfunction occurred, i.e., fording a stream, climbing a grade, traversing a
From this information, the unit level troubleshooter may
discover something that could have contributed to the malfunction. This is
particularly important if the troubleshooter can not duplicate the
malfunction and the troubleshooting procedure reveals no discrepancies.
(c) Operate the Vehicle/Equipment. To verify that the malfunction
actually exists, in this final step, the unit level troubleshooter is
attempting to duplicate the discrepancy. This is important as it gives the
unit troubleshooter actual firsthand knowledge of the indications of the
The above procedures should be performed wherever possible to ensure a
complete understanding of the nature of the malfunction and its indications.
(2) Find the Part Causing the Problem.
In this step of the
troubleshooting procedure, the unit level troubleshooter is actually going
to troubleshoot the vehicle. Before beginning this step, the troubleshooter
should first locate the appropriate troubleshooting procedures in the TM.
For the Bradley, these procedures are located in chapter 3 of TM 9-2350-252-
20-1-1. There are three sub-steps in this step that must be performed if
the troubleshooter is to arrive at a clear and logical understanding of the
malfunction. These three sub-steps will be discussed in the paragraphs that
(a) Sectionalize. Every vehicle or piece of equipment is divided
into a few basic sections. Once the malfunction has been recognized and its
existence verified, the troubleshooter must analyze and evaluate the
malfunction to determine which section is causing the problem.
Once the section causing the malfunction has been
identified, the troubleshooter localizes the malfunction to a particular
circuit or stage.