M2/M3 BFV: FIRE SUPPRESSION SYST - OD1607 - LESSON 2/TASK 1
the boxes of task steps, performing the tests in each box and
following the yes or no pathways to the next instruction box,
depending on the test results obtained.
Moving from box to box in
this way will eventually lead to the identification of the faulty
c. Corrective Action.
Once the faulty part has been located,
using the steps indicated in the troubleshooting procedure, it is
necessary to repair, adjust, or replace the defective part as
indicated in the troubleshooting flow chart.
d. Verifying that the Fault is Corrected. When corrective action
has been completed, it is essential to verify that the malfunction
has been corrected. Often, this means returning to the beginning of
the troubleshooting procedure and repeating the procedure to ensure
that everything is now working correctly. Test operation should also
determine whether the fault has been corrected.
Once assured that
the malfunction no longer exists, the repairs must be annotated on DA
Form 2404 in accordance with DA Pam 738-750.
defective component can only be replaced or repaired by a higher
level of maintenance.
In this case, careful annotation should be
made on DA Form 2404 so that it is clear which repairs need to be
Using these general troubleshooting procedures will help to save
time, avoid frustration, and prevent costly errors.
Along with the
general troubleshooting methods, it is also essential to become
familiar with the special test equipment that will be needed during
the troubleshooting procedures.
The Fire Suppression System Test Equipment
The fire suppression test equipment (figure 20 on the following page)
consists of a valve simulator, a source simulator, a power cable
assembly, and a shorting plug stored in a carrying case. It is used
to test both the fire bottles and the flame sensors.
procedures for hooking up and using the fire suppression system test
equipment are contained within the step-by-step troubleshooting
procedures described in lesson 2, task 2, of this subcourse.