TM 10-4930-251-12&P
APPENDIX
B
MAINTENANCE
ALLOCATION
CHART
SectionI. INTRODUCTION
B-1. GENERAL
a. This section provides ageneral explanation
of all maintenance and repair functions authorized at
various maintenance
levels.
b. The Maintenance
Allocation
Chart (MAC)
Section II designates overall authority and
responsibility
fortheperformance of maintenance functions on the identified
end item or component.
Implementation
of maintenance
functions
upon end item or component will
be consistent \ withassigned
maintenance
functions
c.
Section III lists special tools and test equipment
required
for each maintenance function as
referenced
in Section II.
d.
Section IV contains supplemental
instructions or explanatory
notes for a particular maintenance
function.
e. Section V contains standard torque requirements
to be used when performing
assigned maintenance
functions unless otherwise specified.
B-2.
MAINTENANCE
FUNCTIONS
Maintenence
functions
willbe
limited
to and defined as
follows:
a. Inspect.
To determine the serviceability
of an item by comparing its physical, mechanical, and/or
electrical characteristics
with established standards through examination.
b.
Test.
To verify serviceability by measuring the mechanical or electrical characteristics of an item
and comparing
those characteristics
with prescribed standards.
c.
Service.
Periodic operations required to keep an item in proper operating condition.
i.e., to clean
(includes decontaminate),
to preserve, to drain, to paint, to replenish fuel, lubricants, chemical fluids, and
to lubricate.
d.
Adjust.
To maintain, within prescribed limits, by bringing
into
proper or
exactposition, or by
setting the operating characteristics
to specified parameters.
e. Align.
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 instrument or test
measuring , and diagnostic
equipment used in precision measurement. Consists of comparisons of two
9
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
ing, seating, or fixing
into position an item, part, or
maintenance functions.
Install is the act of emplacing
module (component or assembly) in a manner to allow the proper functioning
of an equipment or system.
B-1
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