DeLaval VMS 2008, Instruction Book

Page: 76 / 206

Operation
DeLaval voluntary milking system VMS
94897201.pdf 2007-12-18
Tank emptying process Flow
controlled cooling (FCC)
Cleaning valve
Pick-up valve
Milk valve
In a Flow controlled cooling system, the
tank emptying process is started by
pressing the pick-up button on the tank. The
current amount of milk in the receiver of the
milking station is pumped to the tank. After
this, the milk valve closes the inlet to the
tank and the cleaning valve opens the
return line to the cleaning unit. (The way the
system works during tank emptying can be
changed to suit requirements or local
regulations. See "Options" below.) Cleaning
of the VMS system is then started
automatically.
Next, the hose from the dairy truck is
connected to the tank outlet, the pick-up
valve is opened and the tank emptying
started.
When the tank has been emptied and the
hose disconnected, the tank cleaning is
started. When both systems have been
cleaned, milking is resumed.
Options
There are two main options regarding tank
emptying in an FCC system:
1) Milk delivery to the tank is not
permitted after the pick-up button has
been pressed.
The current amount of milk in the receiver is
pumped to the tank. Milk extracted after this
point can either be kept in the receiver until
the tank cleaning is complete or, if the milk
divert unit is installed, be pumped to
divert 3, the pail furthest away from the
drain.
Note that keeping milk in the receiver during
the tank cleaning, exludes the possibility of
cleaning the VMS system at the same time
as the tank.
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