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8.3
MECHANICAL PARTS BREAKDOWN
The mechanical parts breakdown
is
illustrated
in
Figures
8-1
through
8-8.
The breakdown contains illustrations and lists of materials exploding
all assemblies and subassemblies down to
a
piece part level.
The
four
columns
of the lists of materials are described below.
8.3.1
FIGURE AND ITEM NUMBER
The first two numbers
in the
column
are the figure numbers and
appear
at the
beginning of each list of material.
The third number
is
the
part item number and appears on
the illustration.
Numbers prefixed with
an
A
(i.e., A1, A2, etc.)
present attaching hardware.
Item numbers are used to
assist
in
locating
a
part
in
the list of
materials when
a
part
is
visually
identified
or a
part number has been located
in the
numerical index
list.
8.3.2
PART
NUMBER
This column contains the
manufacturer's part number.
Part numbers
are used
exclusively to identify parts.
The last four digits of the part
number designate the type of part
as
follows:
DASH NUMBER
TYPE OF PART
-1XXX
Electrical Piece Part
-2XXX
Mechanical Piece Part
-3XXX
Label, Nameplate,
Etc
-4XXX
Electrical Assembly
-5XXX
Mechanical Assembly
-6XXX
Kit
-9XXX
Reference Material
8.3.3
DESCRIPTION
This column provides
a
brief description of
the
indexed part.
8.3.4
QUANTITY
This column indicates the number of piece parts used in the specific
assembly
or
subassembly.
8-4
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