Maintenance Function

That maintenance effort

j. Overhaul.

2. Maintenance Function

(service/action) necessary to restore an item to a

Maintenance functions will be limited to and completely serviceable/operational condition as

defined as follows:

prescribed by maintenance standards (i.e.,

a. Inspect. To determine the serviceability of DMWR) in. appropriate technical publications.

an item by comparing its physical, mechanical, Overhaul is normally the highest degree of

and/or electrical characteristics with estab- maintenance performed by the Army. Overhaul

lished standards through examination.

does not normally return an item to like new

b. Test. To verify serviceability and to detect condition.

incipient failure by measuring the mechanical

k. Rebuild. Consists of those services/actions

or electrical characteristics of an item and necessary for the restoration of unserviceable

comparing those characteristics with prescribed equipment to a like new condition in accordance

standards.

with original manufacturing standards. Re-

c. Service. Operations required periodically to build is the highest degree of materiel mainte-

keep an item in proper operating condition, i.e., nance applied to Army equipment. The rebuild

to clean (decontaminate), to preserve, to drain, operation includes the act of returning to zero

to paint, or to replenish fuel, lubricants, hy- there age measurements (hours, miles, etc.)

draulic fluids, or compressed air supplies.

considered in classifying Army equipments/

d. Adjust. To maintain, within prescribed components.

limits, by bringing into proper or exact position,

or by setting the operating characteristics to the 3. Column Entries

specified parameters.

a. Column 1, Group Number. Column 1 lists

e. Align. To adjust specified variable elements group numbers, the purpose of which is to

of an item to bring about optimum or desired identify components, assemblies, subas-

semblies, and modules with the next higher

performance.

f. Calibrate. To determine and cause correc- assembly.

b. Column 2, Component/Assembly. Column 2

tions to be made or to be adjusted on instru-

ments or test measuring and diagnostic equip- contains the noun names of components, as-

ments used in precision measurement. Consists semblies, subassemblies, and modules for which

of comparisons of two instruments, one of which maintenance is authorized.

c. Column 3, Maintenance Functions. Column

is a certified standard of known accuracy, to

detect and adjust any discrepancy in the 3 lists the functions to be performed on the item

listed in column 2. When items are listed without

accuracy of the instrument being compared.

g. Install. The act of emplacing, seating, or maintenance functions, it is solely for purpose of

fixing into position an item, part, module having the group numbers in the MAC and

(component or assembly) in a manner to allow RPSTL coincide.

d. Column 4, Maintenance Category. Column 4

the proper functioning of the equipment or

system.

Specifies, by the listing of a "work time" figure in

h. Replace. The act of substituting a service- the appropriate subcolumn(s), the lowest level of

able like type part, subassembly, or module maintenance authorized to perform the func-

(component or assembly) for an unserviceable tion listed in column 3. This figure represents

the active time required to perform that

counterpart.

i. Repair. The application of maintenance maintenance function at the indicated category

services (inspect, test, service, adjust, align, of maintenance. If the number or complexity of

calibrate, replace) or other maintenance actions the tasks within the listed maintenance func-

(welding, grinding, riveting, straightening, fac- tion vary at different maintenance categories,

ing, remachining, or resurfacing) to restore appropriate "work time" figures will be shown

serviceability to an item by correcting specific for each category. The number of task-hours

damage, fault, malfunction, or failure in a part, specified by the "work time" figure represents

subassembly, module (component or assembly), the average time required to restore an item

end item, or system. This function does not (assembly, subassembly, component, module,

include the trial and error replacement of end item or system) to a serviceable condition

running spare type items such as fuses, lamps, under typical field operating conditions. This

time includes preparation time, troubleshooting

or electron tubes.