TM 32-5895-248-14&P
MAINTENANCE ALLOCATION CHART
Section I. INTRODUCTION
D-1
GENERAL.
g. Rebuild. Consists of those services/actions necessary
for the restoration of unserviceable equipment to a like new
a. This section provides a general explanation of all
c o n d i t i o n in accordance with original manufacturing stan-
m a i n t e n a n c e and repair functions authorized at various
d a r d s . Rebuild is the highest degree of materiel main-
maintenance levels.
tenance applied to Army equipment. The rebuild operation
b. The Maintenance Allocation Chart (MAC) in Section
i n c l u d e s the act of returning to zero those age measure-
II designates overall responsibility for the performance of
m e n t s (hours/miles, etc.) considered in classifying Army
maintenance functions on the identified end item or com-
equipments/components,
p o n e n t . The implementation of the maintenance functions
D-3 EXPLANATION OF COLUMNS IN THE MAC,
u p o n the end item or component will be consistent with
SECTION Il.
the assigned maintenance functions.
c. Section III lists the special tools and test equipment
a. Column 1, Group Number. Column 1 lists group
required for each maintenance function as referenced from
numbers, the purpose of which is to identify components,
s e c t i o n II.
d. Section IV contains supplemental instructions and
assemblies, subassemblies, and modules with the next
higher assembly.
e x p l a n a t o r y notes for a particular maintenance function.
b. Column 2, Component/Assembly. Column 2 con-
D - 2 MAINTENANCE FUNCTIONS.
tains the names of components, assemblies, subassemblies,
and modules for which maintenance is authorized.
a. Inspect. To determine the serviceability of an item
c. Column 3, Maintenance Function. Column 3 lists the
functions to be performed on the item listed in column 2.
b y comparing its physical, mechanical and/or electrical
(For detailed explanation of these functions, see para. B-2.)
characteristics with established standards through examina-
d. Column 4, Maintenance Level. Column 4 specifies,
tion.
b y the listing of a "work time" figure in the appropriate
b. Test. T o v e r i f y s e r v i c e a b i l i t y a n d d e t e c t i n c i p i e n t
failure by measuring the mechanical or electrical character-
s u b c o l u m n ( s ) , the lowest level of maintenance authorized
t o perform the function listed in column 3. This figure
istics of an item and comparing those characteristics with
r e p r e s e n t s the active time required to perform the main-
prescribed standards.
tenance function at the indicated level of maintenance. If
c. Service. Operations required periodically to keep an
i t e m in proper operating condition; i.e., to clean (decon-
t h e number or complexity of the tasks within the listed
t a m i n a t e ) , to preserve, to drain, to paint, or to replenish
maintenance function vary at different maintenance levels,
a p p r o p r i a t e "work time" figures will be shown for each
fuel, lubricants, hydraulic fluids, or compressed air supplies.
d. Replace. The act of substituting a serviceable like
l e v e l . The number of man-hours specified by the "work
time" figure represents the average time required to restore
t y p e part, subassembly, or module for an unserviceable
counterpart.
a n item (assembly, subassembly, component, module, end
e. Repair. The application of maintenance services or
i t e m , or system) to a serviceable condition under typical
f i e l d operating conditions. This time includes preparation
o t h e r maintenance actions to restore serviceability to an
t i m e , troubleshooting time, and quality assurance/quality
item by correcting specific damage, fault, malfunction, or
failure in a part, subassembly, module (component or
c o n t r o l time in addition to the time required to perform
the specific tasks identified for the maintenance functions
assembly), and item, or system.
a u t h o r i z e d in the MAC, The symbol designations for the
f. Overhaul. That maintenance effort (services/actions)
various maintenance levels are as follows:
n e c e s s a r y to restore an item to a completely serviceable/
o p e r a t i o n a l condition as prescribed by maintenance stan-
C . . . . . . . . . . . . . . . . . . . . . . . . . . . Operator or crew
dards; i.e., Depot Maintenance Work Requirement in appro-
O . . . . . . . . . . . . . . . . . . . . O r g a n i z a t i o n a l maintenance
priate technical publications. Overhaul is normally the
F . . . . . . . . . . . . . . . . . . . . D i r e c t support maintenance
h i g h e s t degree of maintenance performed by the Army.
H . . . . . . . . . . . . . . . . . . . G e n e r a l support maintenance
O v e r h a u l does not normally return an item to like new
D . . . . . . . . . . . . . . . . . . . . . . . . . D e p o t maintenance
condition.
