CHAPTER 1. INTRODUCTION - TM-55-4920-415-13-P0004

TM 55-4920-415-13&P

CHAPTER 1

INTRODUCTION

SECTION I. GENERAL INFORMATION

1-3. Destruction of Army Material to Prevent Enemy

1-1. Scope.

Use. The procedure for destroying Army material to

prevent use are listed in TM 750-244-1-4.

a. These instructions are for your use in operating

and maintaining the gyro tester.

They contain

1-4. Administrative Storage of Equipment. Refer to

information on the installation, operation, preventative

TM 740-90-1 for administrative storage of equipment

maintenance, maintenance and preparation for storage

instructions.

and reshipment of the equipment. The gyro tester is

designed for testing the performance characteristics of

1-5. Reporting

Equipment

Improvement

various aircraft instrument components such as

Recommendations (EIR).

EIR can and must be

directional heading indicators, attitude horizon

submitted by anyone who is aware of an unsatisfactory

indicators, and directional gyro transmitters.

condition with the equipment design or use. It is not

b. Appendix A contains a list of references while

necessary to show a new design or list a better way to

Appendix B describes the maintenance allocated by the

perform a procedure, just simply tell why the design is

maintenance allocation chart.

unfavorable or why a procedure is difficult, ElR may be

submitted on SF 368 (Quality Deficiency Report). Mail

1-2. Maintenance Forms and Records. Maintenance

directly to Commander, US Army Troop Support and

forms, records and reports which are to be used by

Aviation Material Readiness Command, ATTEN: DRSTS-

maintenance personnel at all maintenance levels are

MPM, 4300 Goodfellow Boulevard, St. Louis, Missouri

listed in and prescribed by TM 38-750.

63120. A reply will be furnished to you.

SECTION II. DESCRIPTION AND LEADING PARTICULARS

attitudes of dive and climb, and loops in pitch and roll

1-6. Description. Referring to Figure 1-1, the major

are provided by the gyro tester for any transmitters or

assemblies of the gyro tester consist of the base (16),

gyro indicators having a maximum diameter of six

cradle (15), drive motor (10), control panel (29), fork (7),

inches or less.

vibrator motor (8), gimbal ring (6), mounting plate (5),

and adapter plate (2). Simulated rates of loop and turn,

Legend for Figures 1-1 and 2-1:

Gimbal index knob

17.

Cradle index knob

Adapter plate

18.

Power cable

Leveling pad (4)

19.

Rotation rate adjust

Circular level

20.

Rotation rate adjust

Mounting plate

21.

Rotation rate adjust

Gimbal ring

22.

Rotation switch

Fork

23.

Indicator light

Vibrator motor

24.

Fuse holder

Circular level

25.

Vibrator motor switch

10.

Drive motor

26.

Rotational rate switch

11.

Oil filler plug

27.

Indicator light

12.

Gear box

28.

Fuse holder

13.

Torque limiter

29.

Control panel

14.

Fork index knob

30.

Lock screw (not visible)

15.

Cradle

31.

Attachment screw (4)

16.

Base

1-1