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Home > Ordnance Documents and other related manuals > > Part B - Identyfying Components of the M1A1 Schematic Diagrams
Learning Objective - Od1706a0007
Symbols - Od1706a0009

Wiring Diagrams, M1A1 Tank
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a circuit and its function(s) without regard to the actual physical
size, shape, or location of the component devices or parts.
2.
M1A1 Electrical Schematics and Wiring Diagrams.
The  electrical  schematics  used  to  trace  the  tank's  electrical
circuits  show  only  the  components  used  in  a  given  circuit;  in
addition, the schematic shows all the components of the electrical
assembly  of  that  circuit  on  the  same  sheet.
Because  of  this
arrangement,  you  can  use  these  schematics  for  point-to-point
electrical connections.  For example, the hull power distribution box
has more than four circuit breakers; however, the schematic for the
hull electrical system - power distribution and master power control
circuit  schematic  shows  only  four  circuit  breakers,  because  the
circuit shown has only four circuit breaker in it.
This lesson
traces this circuit in part C.
On the other hand, the electrical wiring diagrams used to trace the
tank's  electrical  circuits  show  all  the  components  used  in  all
circuits; consequently, the components cannot be shown on the same
sheet.  For this reason, you cannot use the wiring diagrams to make
point-to-point  electrical  connections.
For  example,  the  wiring
diagram shows the hull power distribution box on two different sheets
(4  and  6).
Each  time  the  wiring  diagram  shows  the  hull  power
distribution box, it does not show all the components.  You have to
examine both sheets of the wiring diagram to find all the components
in the hull power distribution box.  This lesson traces this circuit
in part C.
This completes part A.
This lesson continues with a description of
the components of the M1A1 schematic diagrams.
PART B - IDENTIFYING COMPONENTS OF THE M1A1 SCHEMATIC DIAGRAMS
1.
Schematic Identification and Sheet Numbering.
The schematics and wiring diagrams show their title and level of
maintenance in the extreme lower right-hand corner.  When a complete
wiring diagram consists of more than one sheet, the sheet number
appears there also.  The sheet number tells you which sheet you have
and  the  total  number  of  sheets  that  make  up  the  diagram.
For
example:
Hull Elementary Wiring Diagram
(DS/GS Level Sheet 1 of 30)
2
OD1706






Western Governors University

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