TM 9-4910-663-12
APPENDIX D
MAINTENANCE ALLOCATION CHART
Section I.
INTRODUCTION
D-1. PURPOSE. The maintenance allocation chart allocates specific
maintenance operations to the proper echelon.
D-2. BASIS. Allocation of maintenance operations is made on the
basis of time, tools, and skills normally available to the various
echelons in a combat situation and influenced by maintenance policy
D-3. EXPLANATION AND DEFINITIONS. The maintenance allocation chart
designates overall responsibility for the maintenance function on an
end item or assembly. Repair and/or rebuild of major assemblies is
designated by authority of the Army commander representative, except
for the specific subfunctions listed in the maintenance allocation
chart. Deviation from maintenance operations allocated in the mainte-
nance allocation chart is authorized only upon approval of the Army
commander representative. Maintenance functions will be limited to
and defined as follows:
a. Inspect. To determine the serviceability of an item by com-
paring its physical, mechanical, and/or electrical characteristics
with established standards through examination.
b. Test. To verify serviceability and to detect incipient failure
by measuring the mechanical or electrical characteristics of an item
and comparing those characteristics with prescribed standards.
c. Service. Operations required periodically to keep an item in
proper operating condition, i.e., to clean, preserve, drain, paint, or
supplies.
d. Adjust. Maintain within prescribed limits by bringing into
proper or exact position, or by setting the operating characteristics
to the specific 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 equipment
used in precision measurement. Consists of comparisons of two instru-
ments, one of which is a certified standard of known accuracy, to
detect and adjust any discrepancy in the accuracy of the instrument
being compared.
D-1