M2/M3 BFV: HULL POWER DIST SYSTEM - OD1606 - LESSON 2/TASK 1
troubleshooting the malfunction with which you are working.
To
remove the VTM from the vehicle batteries, first, pull the VTM
circuit breaker to the OFF position.
Now remove the black lead of
cable W5 from the negative terminal clamp. Then remove the red lead
of cable W5 from the positive terminal clamp.
Once the leads of
cable W5 have been removed from the battery, install the power
compartment covers.
The procedures for installing the power
compartment covers were presented in paragraph 4a on page 10 of task
1, lesson 1. Once the covers are reinstalled, remove plug WSP1 from
jack J1 on the VTM. Stow the VTM and cable W5 in the transit case.
This concludes the procedures for hooking up and removing the STE-
M1/FVS VTM.
In the succeeding paragraphs, the use of the TS-352B/U
multimeter will be discussed.
b.
TS-352B/U Multimeter. In the paragraphs that follow, the other
piece of special test equipment that maintenance personnel will be
using to troubleshoot the hull power distribution system will be
discussed.
The TS-352B/U multimeter is the most commonly found multimeter in the
automotive unit maintenance number 1 and number 2 common tool sets.
It is of military design and is an important and useful piece of test
equipment.
It can be used to make voltage, resistance, and
continuity checks of the electrical circuits on the BFV.
In the
absence of the STE-M1/FVS VTM, the multimeter becomes the most
important troubleshooting tool available to unit level maintenance.
(1) Inspecting the TS-352B/U Multimeter.
Before using the
multimeter, it is important to perform a brief inspection to make
sure that the multimeter is in good shape, so that it will make
accurate measurements.
There are a number
of points on the multimeter which should be
inspected before the
multimeter is used. Simple problems, such as a
jack plug that needs
to be tightened, can be fixed on the spot. When
an item is found to
be damaged, such as a broken meter or a badly
frayed cable, repair
instructions can be found in TM 11-6625-366-15.
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