UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE FM-200 FIRE FIGHTING AND WATER WASHDOWN SYSTEM (WWS) MAINTENANCE ALLOCATION CHART

TM 55-1905-243-24&P

UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE FM-200

FIRE FIGHTING AND WATER WASHDOWN SYSTEM (WWS)

MAINTENANCE ALLOCATION CHART

MAINTENANCE ALLOCATION CHART (MAC)

A-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 (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 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.

A-2 Maintenance Functions

Maintenance functions are limited to and 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.

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.

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,

hydraulic fluids, or gases.

4. Adjust. To maintain or regulate, within prescribed limits, by bringing into proper position, or by setting the

operating characteristics to specified parameters.

5. Align. To adjust specified variable elements of an item to bring out optimum or desired performance.

6. Calibrate. To determine and cause corrections to be made or to be adjusted on instruments of test,

measuring, and diagnostic equipment used in precision measurement. Consists of comparisons 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.

A-1