Section I. GENERAL
1-1. Scope. This manual is for your use in operating and maintaining the Power Unit, PU-650B/G. The
PU-650B/G is a mobile power unit used to supply power to any system or equipment requiring up to 60 KW of
50/60 Hz input operating power. In addition to operating instructions and operator, unit, direct support and general
support maintenance procedures, this manual contains a Repair Parts and Special Tools List for the power unit.
1-2. Maintenance Forms and Records. Maintenance forms and records used by Army personnel are
prescribed by DA Pam 738-750.
1-3. Reporting Of Errors. Reporting of errors and omissions and recommendations for improvement of this
publication by the individual user is encouraged. Reports should be submitted on a DA Form 2028 directly to:
Commander, US Army Troop Support Command, ATTN: AMSTR-MCTS, 4300 Goodfellow Boulevard, St. Louis,
1-4. Reporting Equipment Improvement Recommendations (EIR). EIR's will be prepared using
SF 368 Product Quality Deficiency Report. Instructions for preparing ElRs are provided in DA Pam 738-750, The
Army Maintenance Management System. ElRs should be mailed directly to: Commander, US Army Troop
Support Command, ATTN: AMSTR-QX, 4300 Goodfellow Boulevard, St. Louis, MO, 63120-1798.
1-5. Levels of Maintenance Accomplishment. Army users shall refer to the Maintenance Allocation
Chart (MAC) for tasks and levels of maintenance to be performed.
1-6. Destruction of Army Materiel. Destruction of Army materiel to prevent enemy use shall be in
accordance with TM 750-244-3.
1-7. Administrative Storage.
a. Placement of equipment in administrative storage should be for short periods of time when a shortage of
maintenance effort exists. Items should be in mission readiness within 24 hours or within the time factors as
determined by the directing authority. During the storage period appropriate maintenance records will be kept.
b. Army equipment placed in administrative storage will have preventive maintenance performed in
accordance with the PMCS tables before storage. When equipment is removed from storage, PMCS will be
performed to ensure operational readiness.
c. Storage site selection. Inside storage is preferred for items selected for administrative storage. If inside
storage is not available, trucks, vans, conex containers and other containers may be used.
1-8. Preparation for Shipment and Storage. Refer to TB 740-97-2.