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TM 55-4920-440-13&P
SECTION III. PRINCIPLES OF OPERATION
1-8. After the shelter has been erected, the operator personnel will unbolt selected items of equipment.
These items will be relocated to preselected positions on the expanded side of the shelter. (See para.,1-7c.,d.). 5 The
selected items, when moved, will not be secured (bolted) in place. This allows the shop personnel a certain flexibility in
positioning desks and work station tables. The recommended locations were selected, however, for maximum utilization
of floor space and ease of operation.
WARNING
Four people are needed when moving or lifting the Environmental Control Units (ECUs). Each
unit weighs approximately 270 pounds. Trying to move or lift an ECU without help can cause
serious injury to personnel.
1-9. The two ECUs are positioned on special fold down shelves, when the shop is in the operational mode. Power is
provided by a 208V cable located inside the shelter next to each shelf. Both ECUs can be easily removed for service or
repair.
1-10. Detailed instructions for unbolting equipment and the recommended sequence for relocation is contained in
Chapter 2, Section II. The procedures for striking the shelter and preparing the Production/Quality Control Shop for
transport or storage are contained in Chapter 2, Section III.
1-11. Electrical power to operate the Production/Quality Control Shop is provided by an auxiliary generator or a
commercial power source. A power distribution panel (PDP) is used between the power source and the power entry
panel of the shelter. Overload protection is by circuit breaker. The circuit breaker panel is located inside the shelter next
to the personnel entrance door.
Change 1 1-4.1/(1-4.2 blank)
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