After successfully completing this lesson you should be familiar with a
procedure for discharging and be able to describe the tests required prior to
startup to gain maximum benefit from this lesson you should successfully have
completed the previous lessons it is assumed that the hydraulic power packs
have already been started this lesson gives step-by-step instructions on how
to start the pump the practical section consists of two parts first there is a
demonstration of the procedure this is followed by an interactive guided
walkthrough of the same procedure
pumps are designed and fitted for the purpose of discharging the cargo in
order to achieve this in a safe and efficient manner certain procedures and
rules need to be followed including operational checks prior to start of the
system these include pre-start checks local
start up at the top cover plate on deck and remote start up in the cargo control
room you will now see a demonstration of the
pre-start checks procedure click on the buttons in numerical order ensure that
the service valves on the hydraulic supply line are open in fact these
should only be closed when carrying out maintenance work on the pump or lines
check that the level on the hydraulic tank is within recommended limits check
that the hydraulic oil temperature is within recommended limits checked of
cooling water pump and the ventilation fan in the hydraulic room are running
check that the pump controls are set at the minimum position communicate with
Shore to check they are ready to receive cargo and their valves are correctly set
this completes the demonstration of the pre-start checks procedure this charge
can be controlled either locally at the pump itself or remotely from the cargo
control room some vessels will have the pump and valve controls incorporated
into a computerized cargo management system the instructions relating to the
specialized software should be followed where applicable this training program
concentrates on fram-o equipment and does not cover such computerized systems
you will now see a demonstration of the procedure to be followed when starting
the pump locally click on the buttons in numerical order
check that the manifold valve is closed check that the cargo discharge valve is
closed check that the local control valve is
open by turning it fully counterclockwise push the pump control
handle on the fram-o control panel to the maximum position increase the
hydraulic system pressure to approximately 150 bar start the cargo
pump by closing the local control valve turning it clockwise and let it run with
a hydraulic pressure of 40 to 50 bar for a minimum of one minute
raise the hydraulic pressure to the pump by closing the local control valve
further until the cargo discharge pressure is above the cargo manifold
pressure thus avoiding the possibility of backflow
open the cargo discharge valve open the manifold valve raise the hydraulic
pressure to the pump by closing the local control valve further turning it
clockwise until the required discharge pressure or capacity is achieved
remember to keep the system hydraulic pressure at a maximum of 20 bar above
the hydraulic pressure at the pump this completes the demonstration of the
procedure to be followed when starting the pump locally you will now see a
demonstration of the procedure to be followed when starting the pump remotely
click on the buttons in numerical order check that the manifold valve is closed
check that the cargo pump discharge valve is closed
check that the local control valve is closed by turning it fully clockwise
increase the hydraulic system pressure to approximately 150 bar start the cargo
pump from cargo control panel and let it run with a hydraulic pressure of 40 to
50 bar for a minimum of one minute
raise the hydraulic pressure until the cargo discharge pressure is above the
cargo manifold pressure thus avoiding the possibility of backflow open the
cargo pump discharge valve open the manifold valve
raise the hydraulic pressure until the required discharged pressure or capacity
is achieved remember to keep the system hydraulic pressure at a maximum of 20
bar above the hydraulic pressure at the pump this completes the demonstration of
the procedure to be followed when starting the pump remotely