Chapter 1 INTRODUCTION - TM-9-1290-232-34-P0013

9-1290-232-34&P

CHAPTER

INTRODUCTION

1-1.

SCOPE

This volume contains troubleshooting requirements for direct support and general support (DS/GS) of

the

M13A1,

M13A1C,

M13A3,

and

M13B1

Elevation

Fire

Control

Quadrant.

Because

this

unit

c o m p l e t e l y mechanical, the troubleshooting procedures are given in the form of a performance test. The

p e r f o r m a n c e test checks if the unit is operating correctly and helps you find the fault symptom. It also

tells you what maintenance action is required to fix your fault.

ORGANIZATION

A l l t r o u b l e s h o o t i n g r e q u i r e m e n t s f o r checking out the elevation fire control quadrant and finding fault

s y m p t o m s are given in Chapter 2. I n f o r m a t i o n on how to troubleshoot is in paragraph 1-3.

I-1-1