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Page Title:
APPENDIX II. MAINTENANCE ALLOCATION CHART |
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 MAINTENANCE ALLOCATION CHART
Section I. INTRODUCTION
h. Calibrate. To determine, check, or rectify
1. General
the graduation of an instrument, weapon, or
This appendix contains explanations of all
weapons system, or components of a weapons
maintenance and repair functions authorized
system.
the various levels of maintenance. Section II
contains the maintenance allocation chart.
i. Overhaul. To restore an item to completely
serviceable condition as prescribed by service-
2. Maintenance
ability standards. This is accomplished through
employment of the technique of "Inspect and
Maintenance is any action taken to keep ma-
Repair Only as Necessary" (IROAN). Maxi-
terial in a serviceable condition or to restore
mum utilization of diagnostic and test equip-
it to serviceability when it is unserviceable.
ment is combined with minimum disassembly
Maintenance of material includes the following:
of the item during the overhaul process.
a. Service. To clean, preserve, and replenish
fuel and lubricants.
3. Explanation of Columns
b. Adjust. To regulate periodically to prevent
a. Functional Group. The functional group is
malfunction.
a numerical group set up on a functional basis.
c. Inspect. To verify serviceability and detect
The applicable Functional Grouping Indexes
incipient electrical or mechanical failure by
(obtained from the United tates Army Mobility
scrutiny.
Command) are listed on the MAC in the appro-
d. Test. To verify serviceability and detect
priate numerical sequence. These indexes are
incipient electrical or mechanical failure by use
normally set up in accordance with their func-
of special equipment such as gages, meter,
tion and proximity to each other.
and the like.
b. Components and Related Operation. This
e. Replace. To substitute serviceable assem-
column contains the functional grouping index
blies, subassemblies, and parts for unservice-
heading, subgroup heading, and a brief descrip-
able components.
tion of the part starting with the noun name.
f. Repair. To restore an item to serviceable
It also designates the operations to be per-
condition through correction of a specific fail-
formed such services as, adjust, inspect, test,
ure or unserviceable condition. This function
replace, repair, and overhaul.
includes, but is not limited to, inspecting, clean-
ing, preserving, adjusting, replacing, welding,
c. Levels of Maintenance. This column con-
riveting, and straightening.
tains the various levels of maintenance by letter
d e s i g n a t i o n : O/C-Operator or Crew, O-
g. Align. To adjust two or more components
Organizational, DS-Direct Support, GS-Gen-
of an electrical system so that their functions
are properly synchronized.
eral Support and D-Depot. An X is placed in
AGO 6217A
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