MV BLUEFIN QUALITY MANUAL - Australian Maritime College

Australian Maritime College
It is recommended that 3000 kg rated lifting strop be attached to the aft corners of the
dredge to spill the catch.
Care must be taken to minimise the amount of slack wire from the derrick. The vessels
course must be adjusted to minimise rolling and pitching.
During the lifting and handling operation all staff and students must be fully aware that the
composition of the catch may consist of large stingrays, sponges, spiny fish, blue ring
octopus, rocks etc.
Students and Staff must stand well clear of the dredge while this operation is taking place.
When the dredge is emptied the dredge will be lowered to the centre deck for stowage or
redeployment and the derrick boom and hook will then be stowed.
Note: That at no time can the derrick hook be left unattended to swing freely.
Further reference: See operation guidelines for derrick operation.
Maintenance
Due to the extreme forces that the dredge experiences components are subject to
considerable wear and a constant evaluation and appraisal of all terminal tackle must be
carried out during shooting and hauling operations.
Any faulty components must be replaced immediately before any further dredging takes
place.
Hook up
If during the dredging operation the dredge becomes fouled the following measures must
be implemented.
1. All students must move to the wheelhouse and remain quiet.
2. Stern ramp doors to remain open.
3. All water tight doors and hatches are to be closed.
4. All freeing ports must be clear of any obstructions
5. Notify the Engineer.
Master to the winches,1 st mate to the helm, 2 nd mate to assist where required.
Vessel speed is to be reduced so to allow the vessel to be winched back by the winches
until the vessel is above the fouled dredge.
The vessel must maintain enough power to hold its original heading and in no
circumstances should the vessel be allowed to rotate on the warp as this will induce twists
in it making recovery extremely difficult.
Append 3.7 - Dredge.docx 4 of 5
Revised: November 2010