INTRODUCTION
Section I.
GENERAL
couraged. DA Form 2028 (Recommended
1. Scope
Changes to DA Publications) will be used for
a. These instructions are published for the
reporting these improvements. This form will
use of the personnel to whom the Joy Air Com-
be completed in triplicate using pencil, pen, or
pressor, Model RPV 250 DC20MS1 is issued.
typewriter. The original and one copy will be
forwarded direct to Commanding General, U.S.
the operation, preventive maintenance services,
Army Mobility Equipment Center, Attn:
and organizational maintenance of the equip-
SMOME-MMP, P.O. Drawer 58, St. Louis, Mo.
ment, accessories, components, and attach-
63166. One information copy will be provided
ments. Chapters 5 through 7 provide informa-
to the individual's immediate supervisor (e.g.,
tion for direct and general support and depot
officer, noncommissioned officer, supervisor,
maintenance. Also included are descriptions of
etc.).
main units and their functions in relationship
d. Report all equipment improvement recom-
to other components.
mendations as prescribed by TM 38-750.
applicable to this manual. Appendix II contains
the maintenance allocation chart. Appendix
a. DA Form 2258 (Depreservation Guide of
III contains the list of basic issue items author-
Engineer Equipment).
ized the operator of this equipment and the list
b. For other record and report forms applic-
of maintenance and operating supplies required
able to the operator, crew, and organizational
for initial operation.
maintenance, refer to TM 38-750.
c. The direct reporting by the individual user,
Note. Applicable forms, excluding standard Form 46
of errors, omissions, and recommendations for
which is carried by the operator, will be kept in a
improving this manual is authorized and en-
canvas bag mounted on the equipment.
Section II.
DESCRIPTION AND DATA
stator bore so that the air trapped by the vanes
3. Description
diminishes in volume while moving from inlet
a. General. The portable air compressor,
port to outlet port.
model RPV260DC20MS1 (figs. 1 and 2), is a
skid-mounted, self-contained, canopy-covered
nected to and powered by a Continental engine,
unit. The unit, driven by a diesel engine, is
Model JD403. It is a 4-cylinder, 4-cycle, water
complete with controls, switches and gages nec-
cooled, diesel engine rated at 72 hp (horse-
essary for operation. It has a standard operat-
power) at 1,800 rpm.
ing pressure of 100 psi (pounds per square
inch) which delivers a rated output of 250 cfm
d. Housing. The housing is designed to pro-
(cubic feet per minute) of air, at rated maxi-
tect the unit under all climatic conditions. Ac-
mum speed of 1,800 rpm (revolutions per min-
cess to the operating components of the unit is
ute).
provided by hinged doors that have piano-type
hinges and latches.
gle-stage, flood lubricated, sliding-vane type,
e. Skid Base. The skid base, which includes
rotary unit. Compression is accomplished by
five covered toolboxes, is designed for mount-
rotating a slotted rotor, equipped with sliding
ing on an M-353 two-wheel trailer. Refer to
vanes, within a stator having radial inlet and
TM 9-2330-247-14 for maintenance instruc-
discharge ports. The rotor is off center with the
tions on the trailer.
AGO 8166A
