TM 5-4220-231-14&P
i. Repair. The
application
of
maintenance
services,
including
fault
location/troubleshooting,
removal/installation,
and disassembly/assembly
procedures,
and maintenance
actions
to identify troubles
and
restore serviceability
to an item by correcting
specific
damage,
fault, malfunction,
or failure in a part, subassembly,
module (component
or assembly),
end item, or system.
j. Overhaul.
That
maintenance
effort (service/action)
prescribed
to restore
an item to a completely
serviceable
or operational
condition
as required
by maintenance
standards
in appropriate
technical
publications
(i.e.,
DMWR).
Overhaul
is normally the highest
degree
of maintenance
performed
by the Army.
Overhaul
does
not
normally
return an item to like new condition.
k. Rebuild.
Consists
of those services/actions
necessary
for the restoration
of unserviceable
equipment
to
a like new condition
in accordance
with original manufacturing
standards.
Rebuild
is the highest
degree
of materiel
maintenance
applied
to Army equipment.
The rebuild operation
includes
the act of returning
to zero those
age
measurements
(hours/miles,
etc.) considered
in classifying
Army equipment/components.
B-3.
EXPLANATION
OF COLUMNS
IN THE MAC, SECTION
II
a.
Column
1, Group
Number.
Column
1 lists functional
group code
numbers
the purpose
of which is to
identify
maintenance
significant
components,
assemblies,
subassemblies,
and
modules
with the next higher
assembly.
End item group
number
shall be "00".
b.
Column
2, Component/Assembly.
Column
2 contains
the
names
of components,
assemblies,
subassemblies,
and modules
for which maintenance
is authorized.
c.
Column
3, Maintenance
Function.
Column
3 lists the functions
to be performed
on the itern listed in
Column 2. (For detailed
explanation
of these
functions,
see paragraph
B-2.).
d. Column
4, Maintenance
Level. Column 4 specifies,
by the listing of a work time figure in the appropriate
suboolumn(s),
the level of maintenance
authorized
to perform
the function
listed in Column
3.
This figure
represents
the active time required
to perform that maintenance
function
at the indicated
category
of maintenance.
If the number
or complexity
of the tasks within the listed maintenance
function
vary at different
maintenance
levels,
appropriate
work time figures
will be shown
for each
level.
The work time figure represents
the average
time
required
to restore
an item (assembly,
subassembly,
component,
module,
end item, or system)
to a serviceable
condition
under typical field operating
conditions.
This time includes
preparation
time (including
any necessary
disassembly/assembly
time), troubleshooting/fault
location
time, and quality
assurance/quality
control
time in
addition to the time required
to perform
the specific
tasks
identified
for the maintenance
functions
authorized
in the
maintenance
allocation
chart.
The symbol
designations
for the various
maintenance
levels are as follows:
C ............
Operator
or Crew
O ............
Unit Maintenance
F ............
Intermediate
Direct Support
Maintenance
H ............
Intermediate
General
Support
Maintenance
L ............
Specialized
Repair Activity (SRA)
D ............
Depot Maintenance
e. Column
5, Tools and Equipment.
Column
5 specifies,
by code, those
common
tool sets
(not individual
tools) and special
tools, TMDE, and support
equipment
required
to perform the designated
function.
f. Column
6, Remarks.
This column shall, when applicable,
contain
a letter code in alphabetic
order, which
shall be keyed to the remarks
contained
in Section
IV.
B-2
