| On the surface is situated the control panel which contains all the controls necessary for working with the SBD2. The control panel contains the so called status display. On this display is the crawler indicated with all its functions displayed in a side- and top view. By means of these views it is possible to work with the manipulator and to steer the crawler. The display contains further the heading indicator, the inclinometer in both directions, the depth of the vehicle, the covered distance of the crawler, the oil-pressure of the system, the suction pressure of the mud pump, the electrical current consumption, the insulation resistance of the umbilical, etc. There is also a monitor which gives the picture of the color boat video camera which is mounted together with the underwater lights on top of the manipulator^ suction pipe). At the present moment the SBD2 is fitted with a sonar and a tracking system. The umbilical is reeled on an umbilical winch which is situated on the surface vessel. The SBD2 should be launched and recovered with an additional hoisting unit, which forms no part of the installation. During work the lifting cable can be kept connected to the SBD2 or disconnected. |