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MVP Operators’ Guide 4
OM-09000-Z-04-004D AML Oceanographic Ltd.
2.2 SETUP AND LAUNCHING OF THE TOW FISH
1. Turn on the MVP Controller and start the MVP Controller software.
CAUTION: The MVP Controller is intended to be a stand-alone, dedicated controlling
device; when operating the MVP Controller software, close down any
programs that may be running in the background. This includes virus
scanning software and disk cleanup utilities such as ScanDisk and Defrag
as they may affect system performance.
It is also highly recommended that non-MVP related software NOT be
installed on the MVP Controller computer.
CAUTION: Whenever the winch drum is rotated in HAND mode, the operator must first
ensure that there is no slack cable present on the drum. Slack cable on the
drum will cause cable to wrap itself around the hydraulic motor/brake and/or
slip ring assembly and could cause considerable damage to the tow cable
or winch parts. Always ensure that the cable is tight on the drum before
activating the winch using the manual joystick on the Main Control Box.
2. At the Main Control Box, ensure that the Hand/Off/Auto switch is in the OFF position, the
Local/Remote switch is in the Local position, Freewheel and Freewheel plus linepuller
switches are in the OFF position and the local E-stop button is pulled out.
3. Turn ON the Main Power Lever on the High Power Electrical Box.
4. Push the red ‘Inner Sheave Reset’ button. This will reset the Inner-Sheave/Cable-End
Detection circuit and the Emergency Stop circuit. The red light on the ‘Reset’ button
should go out; if it doesn’t, the inner-sheave/cable-end limit switch circuit needs to be
checked.
5. The red light on the ‘Emergency Stop’ button on the Main Control Box should not be lit
on startup. If so, check to ensure that the ‘Emergency Stop’ button on the Controller
Interface Box, the Main Electrical Box, the Remote Control Unit (if applicable) and the
Remote Pendant (if applicable) are all pulled out.
6. Turn the Hand/Off/Auto switch to Hand mode. The Hand/Off/Auto switch lamp will
illuminate after a short (5sec) delay and the electric motor will turn on.
7. Using the joystick on the Main Control Box, slowly winch IN cable to lift the tow fish out
of its deck cradle and high enough to clear the railing on the side of the vessel.
8. Using the joystick on the Main Control Box, rotate the boom over the side or stern of the
vessel to its intended operational position.
Note: This switch also includes a door interlock mechanism and cannot be rotated
unless the door is closed and locked.
Note: The winch joystick operations are sensitive so the operator must proceed slowly
to acquire a feel for the joystick controls. The mechanical termination on the tow
cable should NOT be winched into the Outer Sheave as this may affect the
operational reliability of the outer sheave limit switch.