Fig 1.9 Far Bank Support
The beam is then stabilized by diagonal telescopic hydraulic cylinders which incorporate a
closed loop hydraulic system actuated by a pressure-sensitive valve in the column. Lowering of
the launch beam operates the pressure-sensitive valve and closes the hydraulic line, which has
been allowing free operation of the hydraulic cylinders. The hydraulic pressure generated by two
self-contained hydraulic pumps is diverted to the locking mechanism in each of the struts and
secures them in position. This locks the far bank support assembly in this lateral setting and
creates a stable support for the launch beam.
Indicator flags, attached to the two pumps confirm the far bank support is locked in
position. There is no need for an operator to cross the launch beam to manually adjust the far
bank support prior to commencement of the bridging module deployment.
For safety the far bank support has been designed so that failure of either of the two
pumps or cylinders can be accommodated. Pump failure being indicated by only one indicator
flag being visible.
1-10-27 Electrical Control Cabinet
The electrical control cabinet is mounted on the left side of the launch frame and interfaces
between the chest pack controls and the system hydraulics. The cabinet is constructed of
aluminum alloy sheet with an internal spring sub-frame to provide environmental and shock
the various system functions on the vehicle.
A power supply-regulating feature is incorporated into the cabinet to correct the power
supply for the variations, which occur in the vehicle, supply voltage. The cabinet also contains a