TM 9-2320-272-24-1
CHAPTER 1
INTRODUCTION
Section I.
General Information (page 1-1)
Section II. Equipment Description and Data (page l-5)
Section III. Principles of Operation (page 1-25)
Section I. GENERAL INFORMATION
1-1. SCOPE
a. This manual contains information and instructions needed to service and maintain 5-ton, 6x6, M939,
M939A1, and M939A2 (M939/A1/A2) series vehicles by unit, direct support, and general support
maintenance personnel. This manual is intended to be used in conjunction with TM 9-2320-272-10 and
TM 9-2320-272-24P for overall completion of tasks found in this manual.
b. The vehicle model numbers and description of vehicles covered in this manual are:
Table 1-1. Vehicle Cross-Reference Table.
VEHICLE DESCRIPTION
M939Al SERIES
M939A2 SERIES
M939 SERIES
M923A2 (EIC: BS7)
M923Al (EIC: BSS)
Truck, Cargo, Dropside,
M923 (EIC: BRY)
Without Winch (WO/W)
M925A2 (EIC: BS8)
M925 (EIC: BRT)
M925Al (EIC: BST)
Truck, Cargo, Dropside,
With Winch (W/W)
M927A2 (EIC: BS9)
Truck, Cargo, Extra Long
M927 (EIC: BRV)
M927Al (EIC: BSW)
Wheelbase (XLWB),
Without Winch (WO/W)
M928A2 (EIC: BTM)
Truck, Cargo, Extra Long
M928 (EIC: BRU)
M928Al (EIC: BSX)
Wheelbase (XLWB),
With Winch (W/W)
M929Al (EIC: BSY)
M929A2 (EIC: BTN)
Truck, Dump,
M929 (EIC: BTH)
Without Winch (WO/W)
M930A2 (EIC: BTO
M930 (EIC: BTG)
M930Al (EIC: BSZ)
Truck, Dump,
With Winch (W/W)
M931A2 (EIC: BTP)
M931Al (EIC: BS2)
M931 (EIC: BTE)
Truck, Tractor,
Without Winch (WO/W)
M932A2 (EIC: BTQ)
M932Al (EIC: BS5)
M932 (EIC: BRD)
Truck, Tractor,
With Winch (W/W)
M934A2 (EIC: BTR)
M934Al (EIC: BS4)
M934 (EIC: BTB)
Truck, Van, Expansible
M936A2 (EIC: BTT)
M936Al (EIC: BS6)
M936 (EIC: BTF)
Truck, Medium Wrecker
1-2. MAINTENANCE FORMS, RECORDS, AND REPORTS
Department of the Army forms and procedures used for equipment maintenance will be those prescribed
by DA Pam 738-750, The Army Maintenance Management System (TAMMS).
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