TM 3-1040-263-34
CHAPTER 1
INTRODUCTION
Section I. GENERAL
procedures used for equipment maintenance will be
1-1.
Scope
those prescribed by TM 38-750.
b. The reporting of errors, omissions, and
These instructions are for use by direct support and
recommendations for improving this publication by the
general support maintenance personnel. They apply to
individual user is encouraged.
Reports should be
the Compressor, Reciprocating, Power Driven,
submitted on DA Form 2028 (Recommended Changes
Flamethrower, 3 1/2 CFM, AN-M4D.
to Publications) and forwarded direct to: Commanding
Officer, Edgewood Arsenal, ATTN: SMUEA-DE-ET,
1-2.
Record and Report Forms
Edgewood Arsenal, Md. 21010.
a.
Department
of
the
Army
forms
and
Section II. DESCRIPTION AND DATA
3rd-stage ....................... 2000 + 50 psi
1-3.
Description
(2) Water separator assembly.
TM 3-1040-263-12 contains a general description of the
Operating pressure
............... 2, 000 psi
AN-M4D compressor and its component parts. TM 5-
Proof pressure
3, 000 psi
2805-256-14 contains a description of the military
Minimum burst pressure (with
standard gasoline engine model 1A08-3 used to operate
relief valve removed) .............. 5, 000 psi
the AN-M4D compressor.
Minimum accumulated
(water capacity)
9 cubic inches
1-4.
Tabulated Data
Relief valve Relieves and passes
3.5
cfm air at 2, 550 psi
a.
General.
(max.) and resets at
2, 150 psi.
Compressor.
(1)
(3) Second-stage relief valve.
Type ...........................................Radial, reciprocating
Type
Spring-loaded
Stages .......................................3
Relieving pressure
.............. 80 psi(max.)
Cylinders ....................................3
Reseating pressure
.............. 625 psi.
Bore:
lst-stage ........................2.500 inches
(4) Frame.
2nd-stage .....................1.062 inches
3rd-stage ......................0.438 inch
Length
22 9/16 inches approximately
Stroke
0.662 inch
Width
17 9/16 inches approximately
Rotation (facing fan end) ...........Counterclockwise
Height
19 1/8 inches approximately
Speed (max.) 3, 600 rpm
Filtration
40 microns
b.
Torque values in pound-feet (except a specified).
Operating pressure ....................2, 000 psi
Capacity (air delivery).................3 1/2 cfm
(1) Overall unit.
Temperature range..................... -40' F. to 125' F.
Lubrication
Force feed
Screw, adapter shaft to engine _ 19.5
Sump capacity (oil) ....................1 pint
Bolt, compressor adapter to
Interstage pressure:
engine
7.5 to 9.0 (90 to 108
1st-stage ....................... 80 + 20 psi
lb. -in.)
2nd-stage .....................490 + 30 psi
1-1
