APPENDIX B MAINTENANCE ALLOCATION CHART (MAC)

TM 10-7360-204-13&P

APPENDIX B

MAINTENANCE ALLOCATION CHART (MAC)

Section I. INTRODUCTION

B-1. The Army Maintenance System MAC

This introduction provides a general explanation of all maintenance and repair functions authorized at the two

maintenance levels under the Two-Level Maintenance System concept.

This MAC (immediately following the introduction) designates overall authority and responsibility for the

performance of maintenance functions on the identified end item or component. The application of the maintenance

functions to the end item or component levels, which are shown on the MAC in column (4) as:

Field - includes two columns, Unit maintenance and Direct Support maintenance. The Unit maintenance

column is divided again into two more subcolumns, C for Operator or Crew and O for Unit maintenance.

Sustainment includes two subcolumns, General Support (H) and Depot (D).

The tools and test equipment requirements (immediately following the MAC) list the tools and test equipment (both

special tools and common tool sets) required for each maintenance function as referenced from the MAC.

The remarks (immediately following the tools and test equipment requirements) contain supplemental instructions

and explanatory notes for a particular maintenance function.

B-2. Maintenance Functions

Maintenance functions are limited to and defined as follows:

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.) This includes

scheduled inspection and gagings and evaluation of cannon tubes.

Test. To verify serviceability by measuring the mechanical, pneumatic, hydraulic, or electrical characteristics of

an item and comparing those characteristics with prescribed standards on a scheduled basis, i.e., load testing of

lift devices and hydrostatic testing of pressure hoses.

Service. Operations required periodically to keep an item in proper operating condition; e.g., to clean (includes

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

gases. This includes scheduled exercising and purging of recoil mechanisms. The following are examples of

service functions:

Unpack. To remove from packing box for service or when required for the performance of maintenance

operations.

Repack. To return item to packing box after service and other maintenance operations.

Clean. To rid the item of contamination.

Change 12

B-1