Appendix C MAINTENANCE ALLOCATION CHART MAC)

TM 9-1270-212-14&P

APPENDIX C

MAINTENANCE ALLOCATION CHART MAC)

Section I. INTRODUCTION

adjust any discrepancy in the accuracy of the instrument

C-l. General.

being compared.

This Maintenance Allocation Chart designates overall

g. Install. The act of emplacing, seating, or fixing into

responsibility for the performance of maintenance

position art item, part, or module (component or assembly)

functions for the HSS. The implementation of field

in a manner to allow the proper functioning of an

maintenance tasks upon this system will be consistent with

equipment or system.

the assigned maintenance operations.

h. Replace. The act of substituting a serviceable like

type part, subassembly, or module (component or

C-2. Maintenance Functions.

assembly) in a manner to allow the proper functioning of

an equipment/system.

Maintenance functions will be limited to and defined as

follows:

i. Repair. The application of maintenance services

a. Inspect. To determine the serviceability of an item

(input, test, service, adjust, align, calibrate, replace) or

other maintenance actions (welding, grinding, riveting,

by comparing its Physical, mechanical and/or electrical

straightening, facing, remachining, or resurfacing) to restore

characteristics with established standards through

serviceability to an item by correcting specific damage,

examination.'

fault, malfunction, or failure in a part, disassembly,

module/component/assembly end item or system.

b. Test. To verify serviceability and detect incipient

failure by measuring the mechanical or electrical

j. Overhaul. That maintenance effort (service/action)

characteristics of an item and comparing those

necessary to restore an item to a completely

characteristics with prescribed standards.

serviceable/operational condition as prescribed by

maintenance standards (e.g., DMWR) in pertinent technical

c. Service. Operations required periodically to keep an

publications. Overhaul is normally the highest degree of

end item in proper operating condition, i.e., to clean, to

maintenance performed by the Army. Overhaul does not

preserve, to drain, to paint, or to replenish fuel, lubricants,

normally return an item to like new condition.

hydraulic fluids, or compressed air supplies.

k. Rebuild. Consists of those services/actions necessary

d. Adjust. To maintain, within prescribed limits, by

for the restoration of unserviceable equipment to a like new

bringing into proper or exact position, or by setting the

condition in accordance with original manufacturing

operating characteristics to specified parameters.

standards. Rebuild is the highest degree of material

maintenance applied to Army equipment. The rebuild

e. Align. To adjust specified variable elements of an

operation includes the act of returning to zero those age

item to bring about optimum or desired performance.

measurements (hours/miles, etc.) considered in classifying

f. Calibrate. To determine and cause corrections to be

Army equipments/components.

made or to be adjusted on instruments or test measuring

and diagnostic equipments used in precision measurement.

l. Symbols. The uppercase letter placed in the

Consists of comparisons of two instruments, one of which

appropriate column indicates the lowest level at which that

is a certified standard of known accuracy, to detect and

particular maintenance function is to be performed.

C-1