M2/M3 BFV: FIRE SUPPRESSION SYST - OD1607 - LESSON 2/TASK 2
area fire bottles were within normal ranges; the STE-M1/FVS has been
removed from the vehicle; the fire suppression system has been
deactivated; the vehicle ground cable has been installed; the MANUAL
light goes ON. Again, this is a complicated troubleshooting pathway
with many possible test results.
To simplify the example, we will
follow only one branch of the pathway, observing some of the test
results PFC Elrond might obtain while troubleshooting.
NOTE
The procedure described below is being used as an
example.
The test results described in this
pathway are not the only results possible when
performing
the
troubleshooting
procedures.
Always follow the directions in the TM for the
actual test results obtained when troubleshooting
on the vehicle.
(1) To troubleshoot for problems in this case, PFC Elrond will
need to use the fire suppression system test equipment.
He removes
the dual valve simulator, the source simulator, the power cable, and
the shorting plug from the test equipment carrying case.
He then
performs the procedures outlined below to determine the direction he
must pursue.
NOTE
Fire bottle 1L1 should be accessed from inside
the turret.
(a) PFC Elrond then removes plug 1W11P8 from fire suppression
bottle jack 1L2J1 (figure 33 on the following page).
(b) He traverses the turret to 5600 mils.
(c) He then removes plug 1W11P9 from fire suppression bottle
jack 1L1J1.
(d) PFC Elrond next places plug 1W11P9 toward the rear of the
fire suppression bottle for access after he has traversed the turret.
This done, he traverses the turret to 6400 mils.
(e) He now installs plug 1W11P8 and 1W11P9 on the dual valve
simulator from the test equipment.
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