M2/M3 BFV: FIRE SUPPRESSION SYST - OD1607 - LESSON 2/TASK 1
(3) Install plug W1P2 on the vehicle distribution box jack
1A1J14 (DCA 3)(figure 23).
To do this, remove the cap from jack
1A1J14 (DCA 3) and install plug W1P2 on the jack.
(4) Move the MASTER POWER switch to the ON position.
(5) Push the VTM circuit breaker (figure 24) to ON.
Three
situations could arise.
If all is working well, the display should
read 8.8.8.8 and then - - - - (four dashes). If the display does not
read 8.8.8.8.
and - - - - (four dashes) consecutively, but is not
blank, the VTM is faulty and should be written up as such on DA Form
2404.
If the display is blank, the procedures for performing
diagnostic troubleshooting of the STE-M1/FVS (VTM only) for a blank
display can be found, when needed, on page 3-903 of TM 9-2350-252-20-
1-1. These procedures will not be covered in this subcourse.
(6) If the display reads correctly, perform the VTM confidence
check using the instructions on the flip cards on the VTM.
If the
VTM confidence check does not pass, the VTM confidence test
diagnostic troubleshooting procedures can be found, when needed, on
page 3-910 of TM 9-2350-252-20-1-1.
These procedures will not be
covered in this subcourse.
FIGURE 24.
THE VTM.
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