TM 55-4920-376-14&P
APPENDIX B
MAINTENANCE ALLOCATION CHART
INTRODUCTION
Section I.
B-1. The purpose of the maintenance allocation chart is to provide all activi-
ties with authorized maintenance functions to be performed at each level of
maintenance.
Maintenance functions shall be limited to and
B-2. Maintenance Functions.
defined as follows:
a. Adjust. Maintain within prescribed limits by bringing into proper or
exact position, or by setting the operating characteristics to the specified
parameters.
b. Align. To adjust specified variable elements of an item to bring about
optimum or desired performance.
c. 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 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.
d. Inspect. To determine the serviceability of an item by comparing its
physical, mechanical, and/or electrical characteristics with established
standards through examination.
e. Install. The act of emplacing, seating, or fixing into position an
item, part, module (component or assembly) in a manner to allow the proper
functioning of the equipment/system.
f. Overhaul. That maintenance effort (service/action) necessary to restore
an item to a completely serviceable/operational condition as prescribed by
maintenance standards (e. g., DMWR) in pertinent technical publications.
Overhaul is normally the highest degree of maintenance performed by the Army.
Overhaul does not normally return an item to like new condition.
g. Rebuild. Consists of those services/actions necessary for the restora-
tion of unserviceable equipment to a like-new condition in accordance with
original manufacturing standards. Rebuild is the highest degree of materiel
maintenance applied to Army Equipment. The rebuild operation includes the
act of returning to zero those age measurements (hours, miles, etc.) considered
in classifying Army equipment/components.
h. Repair. The application of maintenance services (inspect, test,
service, adjust, align, calibrate, replace) or other maintenance actions
(welding, grinding, riveting, straightening, facing, remachining, or resur-
facing) to restore serviceability to an item by correcting specific damage,
fault, malfunction, or failure in a part, subassembly, module/component/
assembly, end item or system.
B-1
