j . O v e r h a u l : T h a t m a i n t e n a n c e e f f o r t ( s e r v i c e / a c t i o n ) necessary to
r e s t o r e an item to a completely serviceable o p e r a t i o n a l c o n d i t i o n as
p r e s c r i b e d by maintenance standards (i.e., DMWR) in appropriate technical
Overhaul is normally the highest degree of maintenance
performed by the Army. O v e r h a u l does not normally return an item to like
n e w condition.
k . R e b u i l d : C o n s i s t s of those services/actions necessary for the
r e s t o r a t i o n of unserviceable equipment to a like new condition in accor-
d a n c e with original manufacturing standards. Rebuild is the highest
degree of materiel maintenance applied to Army equipment. T h e rebuild
o p e r a t i o n includes the act of returning to zero those age measurements
( h o u r s / m i l e s , etc) considered in classifying Army equipment s/components.
Columns used in the Maintenance allocation chart are
e x p l a i n e d below:
a. Column 1. Group Number: Column 1 lists group numbers, the
p u r p o s e of which is to identify components, assemblies, subassemblies, and
modules with the next higher assembly.
b. Column 2, Component/Assembly: Column 2 contains the noun names of
components, assemblies, subassemblies, and modules for which maintenance
c . Column 3, Maintenance Functions: Column 3 lists the functions to
be performed on the item listed in Column 2.
d . Column 4. Maintenance Category: C o l u m n 4 specifies, by the listing
o f a "work time" figure in the appropriate subcolumn(s), the lowest level
o f maintenance authorized to perform the function listed in Column 3.
T h i s figure represents the active time required to perform that maintenance
f u n c t i o n at the indicated category of maintenance. I f the number or
c o m p l e x i t y of the tasks within the listed maintenance function vary at
d i f f e r e n t maintenance categories, appropriate Work time" figures will be
shown for each category. The number of manhours specified by the "work
t i m e " figure represents the average time required to restore an item
(assembly, subassembly, component, module, end item or system) to a
s e r v i c e a b l e condition under typical field operating conditions. T h i s time
i n c l u d e s preparation time, troubleshooting time, and quality assurance/
q u a l i t y control time in addition to the time required to perform the
s p e c i f i c tasks identified for the maintenance functions authorized in the
M a i n t e n a n c e Allocation Chart.
e. Column 5. Tools and Equipment: Column 5 specifies by code those
c o m m o n tool sets (not individual tools) and special tools, test, and
s u p p o r t equipment required to perform the designated function.
f . Column 6, Remarks: Column 6 contains an alphabetic code which
l e a d s to the remark in Section IV, Remarks, which is pertinent to the
i t e m opposite the particular code.