Appendix B: MAINTENANCE ALLOCATION CHART

TM 11-7025-233-23

APPENDIX B

MAINTENANCE ALLOCATION CHART

Section I. INTRODUCTION

B-1. GENERAL

This Maintenance Allocation Chart (MAC) provides a summary of maintenance

operations for the Teleprinter TT-804/MYQ-4A. This document assigns categories of

maintenance for specific maintenance functions on repairable items and identifies

tools and equipment required to perform each function. Each maintenance function

is assigned to the lowest level of maintenance prepared to perform that function.

It should be understood that each maintenance function can also be performed at all

higher levels of maintenance. The higher levels of maintenance will have tools and

test equipment to perform the maintenance functions assigned to and normally

performed by lower levels of maintenance.

B-2. MAINTENANCE FUNCTION DEFINITIONS.

Maintenance Functions are limited to and defined as follows:

a. Inspect. Determination of the serviceability of an item by comparing its

physical, mechanical, and/or electrical characteristics with established standards

through examination.

b. Test. Verification of serviceability and detection of beginning failure by

measuring mechanical or electrical characteristics of an item and comparing

those characteristics with prescribed standards.

Performance of operations required periodically to keep an item in

c. Service.

proper operating condition. Such operations would include cleaning, preservation,

draining, painting, or replenishment of fuel/lubricants/hydraulic fluids or

compressed air supplies.

d. Adjust. Maintenance within prescribed limits by bringing into proper or

exact position, or by setting the operating characteristics to the specified

parameters.

e. Aline. Adjustment of specified variable elements of an item to the maximum

or desired performance.

Determination and cause corrections to or adjustments to

f. Calibrate.

instruments or test measuring and diagnostic equipment used in precision

measurement. Consists of comparing two instruments, one a certified standard of

known accuracy, to detect and adjust any discrepancy in the accuracy of the

instrument being compared.

g. Install. Emplacement, seating, or fixing into position an item, part, or

module (component or assembly) in a manner to allow proper functioning of the

equipment/system.

B-1