TM 5 3805-262-20
g. R e m o v e / I n s t a l l.
To remove and install the same item when required to perform
service or other maintenance functions. Install may be the act of emplacing, seating,
or fixing into position a spare, repair part, or module (component or assembly) in a
manner to allow the proper functioning of an equipment or system.
h. R e p l a c e .
To remove an unserviceable item and install a serviceable counterpart
in its place. "Replace" is authorized by the MAC and is shown as the 3rd position
code of the SMR code.
i. R e p a i r .
The application of maintenance services or other maintenance actions
to 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. O v e r h a u l .
That maintenance effort (service/action) prescribed to restore an
item to a completely serviceable/operational condition as required by maintenance
s t a n d a r d s i n a p p r o p r i a t e t e c h n i c a l p u b l i c a t i o n s ( 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. R e b u i l d.
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.
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 item listed in Column 2. (For detailed explanation of these functions, see
paragraph B-2.)
d. Column 4 - Maintenance Category.
Column 4 specifies, by the listing of a work
time figure in the appropriate subcolumn(s),
the category 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 categories, appropriate work time figures will
be shown for each category. 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 categories are as follows:
B-2
