TM 5-4220-231-14&P
APPENDIX B
MAINTENANCE
ALLOCATION
CHART
Section
I. INTRODUCTION
B-1.
GENERAL.
a. This section
provides
a general
explanation
of all maintenance
and repair functions
authorized
at various
maintenance
levels.
b. The Maintenance
Allocation
Chart (MAC) in Section
II designates
overall
authority
and responsibility
for
the
performance
of maintenance
functions
on the
identified
end
item or component
The
application
of the
maintenance
functions
to the end item or component
will be consistent
with the capacities
and capabilities
of the
designated
maintenance
levels.
c.
Section
III lists the tools and test equipment
(both special
tools and common
tool sets)
required
for each
maintenance
function
as referenced
from Section
II.
d. Section
IV contains
supplemental
instructions
and explanatory
notes for a particular
maintenance
function.
B-2.
MAINTENANCE
FUNCTIONS.
a. Inspect.
To determine
the serviceability
of an item by comparing
its physical,
mechanical,
and or electrical
characteristics
with established
standards
through
examination
(e.g., by sight, sound,
or feel).
b.
Test.
To verify
serviceability
by measuring
the
mechanical,
pneumatic,
hydraulic,
or electrical
characteristics
of an Rem and comparing
those
characteristics
with prescribed
standards.
c.
Service.
Operations
required
periodically
to keep
an item in proper
operating
condition,
i.e., to clean
(includes
decontaminate,
when
required),
to preserve,
to drain, to paint, or to replenish
fuel, lubricants,
chemical
fluids, or gases.
d.
Adjust.
To maintain
or regulate,
within prescribed
limits, by bringing into proper
or exact
position, or by
setting
the operating
characteristics
to specified
parameters.
e.
Aline.
To adjust specified
variable
elements
of an item to bring about optimum
or desired
performance.
f. Calibrate.
To determine
and cause
corrections
to be made
or to be adjusted
on instruments
or test
measuring,
and diagnostic
equipments
(TMDE) used in precision
measurement.
Consists
of comparisons
of two
instruments,
one of which is a certified
standard
of known
accuracy,
to detect
and adjust
any discrepancy
in the
accuracy
of the instrument
being compared.
g.
Remove/install.
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. Replace.
To remove
an unserviceable
item and install a serviceable
counterpart
in its place.
"Replace"
is authorized
by the MAC and is shown
as the 3d position
code of the SMR code.
B-1
