TM-9-2350-311-10
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5
TECHNICAL MANUAL; OPERATOR’S MANUAL
NOVEMBER 1994
TM-9-2350-311-10 - Page 33 of 775
TM 9--2350--311--10
Change 6
i
HEADQUARTERS
DEPARTMENT OF THE ARMY
Washington, D.C., 23 November 1994
TECHNICAL MANUAL
No. 9--2350--311--10
OPERATOR’S MANUAL
FOR
HOWITZER, MEDIUM, SELF-PROPELLED,
155MM
M109A2 (2350--01--031--0586) (EIC: 3EZ)
M109A3 (2350--01--031--8851) (EIC: 3E2)
M109A4 (2350--01--277--5770) (EIC: 3E8)
M109A5 (2350--01--281--1719) (EIC: 3E7)
REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS
You can help improve this publication. If you find any mistakes or if you know of a way to improve the
procedures, please let us know. Submit your DA Form 2028 (Recommended Changes to Equipment Technical
Publications), through the Internet, on the Army Electronic Product Support (AEPS) website. The Internet
address is http://aeps.ria.army.mil. The DA Form 2028 is located under the Public Applications section in the
AEPS Public Home Page. Fill out the form and click on SUBMIT. Using this form on the AEPS will enable us to
respond quicker to your comments and better manage the DA Form 2028 program. You may also mail, fax or
E--mail your letter or DA Form 2028 direct to: TACOM Life Cyclem Management, ATTN: AMSTA--LC--LMPP/
TECH PUBS, 1 Rock Island Arsenal, Rock Island, IL 61299--7630. The email address is ROCK--TACOM--
TECH--PUBS@conus.army.mil. The fax number is DSN 793--0726 or Commercial (309) 782--0726.
DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.
TABLE OF CONTENTS
Page
HOW TO USE THIS MANUAL
iii
......................................................................
CHAPTER 1
INTRODUCTION
1--1
.................................................................
Section I.
General Information
1--1
...............................................................
Section II.
Equipment Description
1--5
.............................................................
Section III.
Principles of Operation
1--22
............................................................
Section IV.
Section Drill
1--41
.....................................................................
CHAPTER 2
OPERATING INSTRUCTIONS
2--1
......................................................
Section I.
Description and Use of Operator’s Controls and Indicators
2--2
............................
Section II.
Preventive Maintenance Checks and Services (PMCS)
2--16
..............................
Section III.
Operation Under Usual Conditions
2--89
.................................................
Section IV.
Operation Under Unusual Conditions
2--271
..............................................
*This manual supersedes TM 9--2350--311--10 and LO 9--2350--311--12, dated June 1986, and all changes.
*
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