MAINTENANCE ALLOCATION CHART INTRODUCTION

TM 10-4110-262-13&P

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ADVANCED DESIGN REFRIGERATOR, 300 CUBIC FOOT (ADR-300)

4110-01-465-4158 / 4110-01-465-4564

MAINTENANCE ALLOCATION CHART

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 (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 shall be consistent with the capacities and

capabilities of the designated maintenance levels, which are shown on the MAC in column (4) as:

Unit - includes two subcolumns, C (operator/crew) and O (unit) maintenance

Direct Support - includes an F subcolumn

General Support - includes an H subcolumn

Depot - includes a D subcolumn

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.

MAINTENANCE FUNCTIONS

Maintenance functions will be limited to and are defined as follows:

1. 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 gauging and

evaluation of consumables.

2. 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.

3. 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.

4. Adjust.

To maintain or regulate, within prescribed limits, by bringing into proper position, or by

setting the operating characteristics to specified parameters.

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