Appendix B: MAINTENANCE ALLOCATION CHART (MAC) 2-LM

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TM-9-2330-326-14-P Semitrailer Tactical Drop Deck BreakBulk/Container Transporter 22-1/2 TON M871A3NSN 2330-01-458-6865 Manual

INTRODUCTION

TM 9-2330-326-14&P

APPENDIX B

MAINTENANCE ALLOCATION CHART (MAC) 2-LM

B-1. INTRODUCTION

The Army Maintenance System MAC

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

at various maintenance levels under the standard Army maintenance system concept.

The MAC (Section B-2, immediately following this 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 will be

consistent with the capacities and capabilities of the designated maintenance levels, which are

shown on the MAC in Column (4) as:

FIELD LEVEL

SUSTAINMENT LEVEL

Unit:

General Support:

Includes two sub column(s),

Includes H sub column.

C (Operator/Crew), and

O (Organizational) maintenance.

Direct Support:

Depot:

Includes F sub column.

Includes D sub column.

The Tools and Test Equipment (Section B-3, 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 (Section B-4, immediately following the Tools and Test Equipment) contain

supplemental instructions and explanatory notes for a particular maintenance function.

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, gauging, and evaluation of cannon tubes.

Test. To verify serviceability by measuring the mechanical, pneumat ic, hydraulic, or electrical

characteristics of an item and comparing those characteristics with prescribed standards on a

scheduled basis, e.g., 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 r coil

mechanisms.

B-1