HOW-TO-USE THIS MANUAL

TM 3-1040-276-23

HOW-TO-USE THIS MANUAL

GENERAL. When using this manual, check all warn-

b. Direct Support Maintenance Procedures. Pro-

vides initial setup and detailed procedures for perform-

ings and cautions before operating the M3A4 smoke

ing maintenance functions authorized by the MAC,

generator and review the entire maintenance procedure

appendix B.

before beginning the maintenance task. References are

to pages, figures, or other publications. TM 3-1040-

APPENDIXES. This appendixes covers the following

255-10 provides procedures for installing the M2

information.

smoke generator mount.

a. Appendix A. Lists all references used.

INDEXES. Three indexes provide quick access to

b. Appendix B. Contains the maintenance alloca-

parts of this manual.

tion chart (MAC) for the M3A4 smoke generator.

a. Table of Contents. Lists in order all chapters

c. Appendix C. Lists expendable or durable sup-

and their sections and appendixes. Gives page refer-

plies needed to operate and maintain the M3A4 smoke

ences.

generator.

b. Symptom Index. Indexes the common malfunc-

d. Appendix D. Lists and illustrates items requiring

tions that may be reported to you by the operator or

manufacture.

that you may find during maintenance.

c. Alphabetical Index. Lists page numbers for

EXAMPLE. You are a Quartermaster and Chemical

each paragraph and appendix.

Equipment Repairer, MOS 63J. You have received an

M3A4 smoke generator from the operator for repair at

ORGANIZATIONAL MAINTENANCE INSTRUCTIONS.

organizational maintenance level. The operator reports

Chapter 2 covers the following information:

that the fog oil pump fails to pump fog oil. (Note: The

a. Repair Parts; Special Tools; Test, Measurement,

same methods of finding information apply to direct

and Diagnostic Equipment (TMDE); and Support Equip-

support maintenance.)

ment.

a. How do you start? Look at the table of contents

in the front of this manual. On the left side you find the

b. Service Upon Receipt. Gives procedures for

listing chapter 2, Organizational Maintenance, section

servicing smoke generators upon receipt.

IV, Troubleshooting Procedures, telling you to go to

c. Preventive Maintenance Checks and Ser-

page 2-8.

vices. Lists mandatory semiannual inspections and

b. What malfunction did the operator report for the

services.

generator turned into you for repair? If the DA Form

d. Troubleshooting Procedures. Provides the typi-

2404 does not tell you, ask the operator to describe the

cal malfunctions reported by the operator to organiza-

problem.

tional maintenance. Lists the tests or inspections, and

c. How do you fix a problem? Follow the step-by-

sequential steps to be taken to correct failures reported

step instructions in the troubleshooting table. The

on the generator. Refers to organizational maintenance

instructions under corrective action tell you what

instructions required to correct the problem.

maintenance procedures to follow and the page num-

e. Organization/Maintenance Procedures. Pro-

ber. Follow the procedures until the problem is fixed or

vides initial setup and detailed procedures for perform-

the instructions tell you to refer the problem to direct

ing maintenance functions authorized by the MAC,

support maintenance for repair of the generator.

appendix B.

d. What supplies and equipment will you need?

DIRECT SUPPORT MAINTENANCE INSTRUCTIONS.

Go to the alphabetical index in the back of the manual.

Look for the major component you are going to fix. For

Chapter 3 covers the following information.

example, M4 fog oil pump maintenance instructions for

a. Repair Parts; Special Tools; Test Measurement,

organizational maintenance refer you to page 2-61.

and Diagnostic Equipment (TMDE); and Support Equip-

There, under Initial Setup, you will find a list of tools,

ment.

supplies, and materials you will need.