TM-9-2350-311-34-1
HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS: HOWITZER, MEDIUM, SELF-PROPELLED, 155MM
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
SEPTEMBER 1994
TM-9-2350-311-34-1 - Page 15 of 352
TM 9-2350-311-34-1
CHAPTER 1
INTRODUCTION
GENERAL
This chapter provides information to familiarize the mechanic with the Ml 09A2/M1 09A3/M1 09A4/M1 09A5 Medium,
Self-Propelled Howitzer’s hull, powerplant, drive controls, tracks, suspension, and other hull-related components. This
information is provided through a physical description of the major components, which the technician is required to
maintain, service, inspect, replace, or repair.
Additional information is provided as reference and guidance on the use of forms, maintenance of records, and filing
reports.
CONTENTS
Section 1
1-1
1-2
1-3
1-4
1-5
1-6
1-7
1-8
1-9
1-10
Section II
1-11
1-12
1-13
1-14
Section Ill
1-15
PAGE
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..1-5
SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..1-5
MAINTENANCE FORMS, RECORDS, AND REPORTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
DESTRUCTION OF ARMY MATERIEL TO PREVENT ENEMY USE . . . . . . . . . . . . . . . . . . . . . . . .
..1-5
PREPARATION FOR SHIPMENT AND STORAGE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..1-6
QUALITY ASSURANCE (QA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..1-6
OFFICIAL NOMENCLATURE, NAMES, AND DESIGNATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..1-6
REPORTING EQUIPMENT IMPROVEMENT RECOMMENDATIONS (EIRS). . . . . . . . . . . . . . . . . .
..1-6
WARRANTY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..1-7
SAFETY, CARE, AND HANDLING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..1-7
CORROSION PREVENTION AND CONTROL (CPC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.1-8
EQUIPMENT DESCRIPTION AND DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..1-8
CAPABILITIES AND FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..1-8
LOCATION OF MAJOR COMPONENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..1-10
DIFFERENCES BETWEEN MODELS.
.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..1-14
EQUIPMENT DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..1-15
PRINCIPLES OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..1-17
EQUIPMENT OPERATION AND DESCRIPTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..1-17
1-1
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