MAINTENANCE FUNCTIONS.

TM 11-5820-670-12

B-2. USE OF MAINTENANCE ALLOCATION CHART (SEC II). (CONT)

f. Normally there will be no deviation from the assigned level of maintenance. In cases of opera-

tional 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 level 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 for the function.

The higher level of maintenance will provide technical supervision and inspection of the function being

performed at the lower level.

g. Changes to 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. 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 (eg. by sight,

sound, or feel).

b. Test. To verify serviceability 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, ie, to

clean (includes decontaminate, when required), to preserve, to drain, to paint, or to replenish fuel,

lubricants, chemical fluids, or gases.

d. Adjust. To maintain, within prescribed limits, by bringing into proper or exact position, or by

setting the operating characteristics to specified parameters.

e. Aline. To adjust specified variable elements of an item to bring about optimum or desired

performance.

f. Replace. To remove an unserviceable item and install a serviceable counterpart in its place.

Replacement is authorized by the MAC and is shown as the third position code of the SMR code.

g. Repair. The application of maintenance services', including fault location/troubleshooting2,

removal/installation, and disassembly/assembly3 procedures, and maintenance actions4 to identify

troubles and restore serviceability to an item by correcting specific damage, fault, malfunction, or

failure in a part, subassembly, module (component or assembly), end item, or system.

`Services inspect, test, service, adjust, aline, calibrate, or replace.

Actions welding, grinding, riveting, straightening, facing, remachining, or resurfacing.

Disassembly/assembly encompasses the step-by-step taking apart (or breakdown) of a

spare/functional group code item to the level of its least componency identified as maintenance

significant (ie, assigned an SMR code) for the category of maintenance under consideration.

Actions welding, grinding, riveting, straightening, facing, remachining and/or resurfacing.

B-3