Appendix B. MAINTENANCE ALLOCATION CHART (MAC)

TM 9-3990-206-14&P

APPENDIX B

MAINTENANCE ALLOCATION CHART (MAC)

Section I. INTRODUCTION

B-1. GENERAL.

a. This section provides a general explanation of all maintenance and repair functions authorized at various

maintenance levels.

b. The Maintenance Allocation Chart (MAC) in Section II and III designates overall authority and responsibility

for the performance of maintenance functions on the identified end item or component. Section II is the MAC for the

Flatrack M1077/M1077A1 and Section III is the MAC for the ISO Compatible Palletized Flatrack M1 (IPF). The

application of the maintenance functions to the end item or components will be consistent with the capacities and

capabilities of the designated maintenance levels.

c. Section IV lists the tools and test equipment required for each maintenance function as referenced from

Section II or III.

d. Section V lists remarks (identified by an alphabetic code in column 6 of MAC) to provide a ready reference to

the definition of the remarks.

B-2. 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 (e.g., by sight, sound, or feel).

b. Test. To verify serviceability by measuring the mechanical, pneumatic, hydraulic, 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

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

fluids, or gases.

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

setting the operating characteristics to specified parameters.

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 equipments used in precision measurement. Consists of comparison 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. Remove/Install. To remove and install the same item when required to perform service or other maintenance

functions. Install may be the act of emplacing, seating or fixing into position, a spare, repair part or module

(component or assembly) in a manner to allow the proper functioning of an equipment or system.

B-1