To remove and install the same item when required to perform
I n s t a l l may be the act of emplacing,
service or other maintenance functions.
s e a t i n g , o r f i x i n g i n t o p o s i t i o n a s p a r e , r e p a i r part, or module (component or
assembly) in a manner to allow the proper functioning of an equipment or system.
h . Replace.
T o remove an unserviceable item and install a serviceable
" R e p l a c e " i s authorized by the MAC and is shown as the 3d
counterpart in its place.
p o s i t i o n code of the SMR code.
Repair. The application of maintenance services including fault
l o c a t i o n / t r o u b l e s h o o t i n g , r e m o v a l / i n s t a l l a t i o n , a n d 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,
s u b a s s e m b l y , module (component or assembly), end item, or system.
That maintenance effort (service/action) prescribed to restore an
j . Overhaul.
item to a completely serviceable/operational condition as required by
maintenance standards in appropriate technical publications (i.e., DMWR).
O v e r h a u l is normally the highest degree of maintenance performed by the
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
R e b u i l d is the highest degree of materiel maintenance
a p p l i e d to Army equipment. T h e r e b u i l d o p e r a t i o n i n c l u d e s t h e a c t o f r e t u r n i n g t o
z e r o those age measurements (hours/miles, e t c . ) c o n s i d e r e d i n c l a s s i f y i n g A r m y
B - 3 . Explanation of Columns in the MAC, Section II.
a . Column 1, Group Number.
C o l u m n 1 lists functional group code numbers, the
purpose of which is to identify maintenance significant components, assemblies,
End item group number
subassemblies, and modules with the next higher assembly.
shall be "00".
b . Column 2, Component/Assembly. C o l u m n 2 contains the names of components,
assemblies, subassemblies and modules for which maintenance is authorized.
c . C o l u m n 3, Maintenance Function.
C o l u m n 3 lists the functions to be performed
(For detailed explanation of these functions, See
o n the item listed in Column 2.