TM9_759_1942.pdf

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TM 9-759
WAR
DEPARTMENT
TECHNICAL
MANUAL
MEDIUM TANK
M4A3
AUGUST 4, 1942
WJTH<
BY
. 5200. 1R
TM 9-759
TECHNICAL MANUAL \
No. 9-759
/
WAR DEPARTMENT
Washington, August 4, 1942
MEDIUM TANK M4A3
Prepared under the direction of
the Chief of Ordnance
(with the cooperation of the Ford Motor Company)
CONTENTS
Paragraphs
Pages
SECTION
I:
II:
III:
IV:
V:
VI:
VII:
Introduction ........................................
Description and tabulated data..........
1-3
4-5
2
3-7
8-22
23-27
28-33
34-54
55
56-62
Operating instructions and controls.. 6-11
Lubrication ........................................12-16
Inspections ........................................17-22
Power unit and accessories...............23-37
References ..........................................38-40
INDEX ............................................................................
TM 9-759
1-3
MEDIUM TANK M4A3
Section I
INTRODUCTION
Paragraph
Purpose and scope..........................................................................
Content and arrangement of the manual....................................
References ......................................................................................
1
2
3
1. PURPOSE AND SCOPE.
TM 9-759 dated August 4, 1942, is intended to serve temporarily
(pending the publication of a revision now in preparation which will
be wider in scope) to give information and guidance to the personnel
of the using arms charged with the operation and maintenance of
this materiel.
2. CONTENT AND ARRANGEMENT OF THE MANUAL.
Sections I through V contain information chiefly for the guidance
of operating personnel. Section VI contains information intended
chiefly for the guidance of personnel doing maintenance work.
3. REFERENCES.
Section VII lists all Standard Nomenclature Lists, Technical
Manuals, and other publications for the material described herein.
TM 9-759
4-5
Section II
DESCRIPTION AND TABULATED DATA
Paragraph
Description ....................................................................................
Tabulated data................................................................................
4
5
4. DESCRIPTION (figs. 1 and 2).
a. The medium tank M4A3 is an armored, full track-laying
vehicle, powered by a 500 hp Ford tank engine which is an eight
cylinder, liquid cooled, "V" type engine designed specifically for
tanks. The engine is located in the rear of the hull. The operator
steers the vehicle by means of two levers located in the front end
of the hull. The vehicle has five forward speeds and one reverse. The
tank is wired for radio installation, and for an interphone system
within the tank.
b. The turret armor front is 3 inches thick, sides are 2 inches
thick, and rear is 2 inches thick. The top of the turret is 1 inch
thick. The armor on the sides of the hull is 1 '/> inches thick and the
front slope is 2 inches thick.
c. The turret can be rotated through 360 degrees by a hydraulic
system or by hand. The turret platform rotates with the turret.
d. An auxiliary electrical generating system, consisting of a
generating set powered by a one-cylinder two-cycle gasoline engine,
charges the batteries when the engine generator is not operating.
5. TABULATED DATA,
a. General
Weight without armament, fuel or crew..................................59560 Ib
Ground clearance ........................... ......._....................................17%-in.
Tread (center to center of tracks)............................................__._..83-in.
Width over-all ................................................................................103-in.
Length over-all ..........................................................................232i/2 -in.
Height over-all ..........................................................................111%-in.
b. Engine
Ford tank engine
Rated horsepower.......................................__..__..._...........500 at 2600 rpm
Number of cylinders (60 V)..................................................................8
Weight of engine, w/accessories..................................................1470 Ib
c. Armament
1 gun, 75-mm, M3 (combination turret mount)
1 gun, machine, cal. .30, M1919A4 (combination turret mount)
1 gun, machine, cal. .30, M1919A4
(flexible ball mount in front plate)
TM 9-759
5
MEDIUM TANK M4A3
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