Section I. GENERAL
These instructions are published for the use of the personnel to whom the power unit is issued. They provide
instructions on the operation and organizational maintenance of the equipment. Also included are descriptions of main
components and their functions in relationship to other components.
Appendix A contains a list of publications applicable to this manual. Appendix B contains a list of basic issue
items authorized for operation and organizational maintenance of this equipment and a list of maintenance and operating
supplies required for initial operation. Appendix C contains the maintenance allocation chart.
1-2. Forms and Records
DA Forms and procedures used for equipment maintenance will be only those prescribed by TM 38750, Army
Equipment Record System and Procedures.
Report of errors, omissions, and recommendations for improving this publication by the individual user is
encouraged. Reports should be submitted on DA Form 2028 (Recommended Changes to DA Publications) and
forwarded direct to Commanding General, U.S. Army Mobility Equipment Command, ATTN: AMSME-MPP, 4300
Goodfellow Boulevard, St. Louis, Mo. 63120.
Section II. DESCRIPTION AND DATA
General. The power unit is a fully enclosed, skid mounted, self-contained, portable unit (fig. 1-1 and 1-2). The
power unit provides conditioned air (heating, cooling, and ventilation), electrical power (400 Hz (Hertz) 60 Hz, and 24v dc
(volt direct current) emergency lighting power), hot and cold water, compressed air, and a vacuum suction system for
support of the MUST (Medical Unit Self-Contained, Transportable) hospital elements. The power unit consists of a gas
turbine engine power plant, electrical system, conditioned air system, water system, compressed air system, vacuum
system, enclosure, and accessory components for connection of the power unit to other elements of the MUST hospital.
The power unit requires only an external source of fuel and water for self-contained operation. Lifting, tiedown, support
and connection provisions on the enclosure provide mobility of the unit by truck, railroad car, helicopter, airplane,
mobilizing transporter wheels, and by skidding.
Gas Turbine Engine Power Plant (fig. 1-3). The gas turbine engine power plant is installed in the lower left front
corner of the power unit and consists of a pneumatic and shaft power gas turbine engine, 60 Hz and 400 Hz generators, a
fuel system, a lubrication system, various air ducts, plumbing installation, electrical wiring installation, and a skid base.
Two electrical rack assemblies are installed on the power plant skid base and contain various regulating and control
components for the power unit electrical system. The gas turbine