TM 55-2840-231-23
e. The assignment of a maintenance function will not be construed as authorization to carry the
associated repair parts in stock. Information to requisition or otherwise secure the necessary repair
parts will be as specified in the Repair Parts, Special Tools List.
f. Normally there will be no deviation from the assigned level of maintenance. In cases of operational
necessity, maintenance functions assigned to a maintenance level may, on a one-time basis and at the
request of the lower maintenance level, be specifically authorized by the maintenance officer of the level
of maintenance to which the function is assigned. The special tools, equipment, etc. required by the
lower lever of maintenance to perform this function will be furnished by the maintenance level to which
the function is assigned. This transfer of a maintenance function to a lower maintenance level does not
relieve the higher maintenance level of the responsibility of the function. The higher level of
maintenance has the authority to determine:
(1) If the lower level is capable of performing the work.
(2) If the lower level will require assistance or technical supervision and on-site inspection.
(3) If the authorization will be granted.
g. Maintenance of the US Army Communications and Electronics Material Readiness Command
equipment will be performed by designated US Army CERCOM personnel.
h. Changes in the Maintenance Allocation Chart will be based on continuing evaluation and analysis
by responsible technical personnel and on reports received from field activities,
B-3. DEFINITIONS.
Maintenance functions. Maintenance functions will be 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 and 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 (decontaminate), to preserve, to drain, to paint, or to replenish fuel, lubricants, hydraulic fluids, or
compressor air supplies.
d. Adjust. To maintain, with prescribed limits, by bringing into proper or exact position, or by setting
the opening 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 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.
g. Install. The act of emplacing, seating, or fixing into position an item, part, or module (component
or assembly) in a manner to allow the proper functioning of an equipment or system.
h. Replace. The act of substituting a serviceable like type part, subassembly, or module (component
or assembly) for an unserviceable counterpart,
Change 11 B-3
