MV BLUEFIN QUALITY MANUAL - Australian Maritime College

Australian Maritime College
When the cod-end is emptied the net will be lowered to the centre deck for stowage on to
the net drum 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 trawl 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 trawling takes place.
HOOK UP
If during the trawling operation the trawl 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 trawl.
The vessel must maintain enough power to hold its original heading and in no
circumstances should the vessel be allowed to rotate on the warps as this will induce
twists in them making recovery extremely difficult.
Note: Short sharp bursts of power and large rudder angles will assist in maintaining
original heading. Extreme caution must be used during this operation as a large following
sea will repeatedly engulf the trawl deck.
Once the vessel is above the trawl pressure can be applied by the winches to assist in
freeing the trawl from the obstruction.
If the trawl fails to break free there will be a requirement to use more vessel power to
assist in applying pressure to the snagged trawl net.
Note: At all times vessel safety and stability issues must be continually addressed
and at no time shall the vessel safety be jeopardised.
In the advent of the trawl not coming free, warps will be paid out until sufficient slack is
available and the warps cut free with the use of the oxy acetylene cutting equipment or
9 inch grinder depending on the circumstances.
Append 3.6 - Trawl Equip.docx 5 of 6
Revised: November 2010