Maintenance: Before use the main spindle has to
be greased with special food-grade grease, and again Before
starting: Make sure there is nothing near
the ends of the Press, as the long centre screw will come outwards. Electrical
connection: Make
sure that the power supply is correct. To check that the three phases are
wired correctly you must Testing of the
direction of rotation:- 1. Stand in front of the control
panel. 2. Free the large locking handle
on your right hand side (which holds the cage). 3. Set the power supply switch
(on left hand edge of control panel) to '1' (on). 4. Twist-release the red
'emergency stop' push-button (centre of control panel). 5. Set selection
switch to "slow crumble". 6.
Briefly press the white 'on' button. -
The press must turn clockwise/to the right (Auflockern/Loosen). If the turning direction is wrong,
then two of the three phase supply wires must
be swopped over NOTE: If you wish to switch to
'Fast Crumble' only do this when it the cage is already moving on Manometer
and membrane housing: The
manometer and the pipe leading to the contact manometer are filled with
glycerine. It is not recommended to drain it off, as glycerine doesn't freeze.
If at any time the glycerine needs to be renewed, the drum must be turned so
that the ventilation screw at the bottom of the drum is at the highest point.
The ventilation screw should be removed and
the screws on the manometer or on the switch box loosened. Now glycerine
should be filled into the pipe so that glycerine is in the pipe as well as the
ventilation opening. The ventilation screw is then screwed up again and the
pipe screwed in firmly. Motor brake: The brake which is built into the
motor has the function to ensure that when filling the press through the
filling doors the press basket always remains in the required position. Also
a very precise emptying is possible as the brake acts quickly if the press is
switched off or even if there is a power failure. Programming
the Automatic control: Programme design is by experience,
according to the crop. For example - programme for a crop
to be pressed very hard:- Select pressing levels:
Set the switch 0.5
bar to position 2 (2 pressings)
Set the switch 1.0
bar to on (vertical)
Set the switch 1.5
bar to on (vertical)
Set the switch 2.0
bar to on (vertical)
Set the switch 3.0
bar to on (vertical)
Set the switch 4.0
bar to on (vertical)
Set the switch 5.0
bar to on (vertical)
Set the switch 5.8
bar to on (vertical) Set
the 'Number of Re-Pressings' switch at 5. Switching on and setting the press
for fully automatic control: Check
that the Press doors are closed. Stand in front of the control panel. Free the large locking
handle on your right hand side (which holds the cage). Set the power supply
switch (on left hand edge of control panel) to '1' (on). Twist-release the red
'emergency stop' push-button (centre of control panel). Move selection switch first to 'Cancel' then on to
'Automatic'. Press the white 'on'
button until the first green control light lights up, according to what is
set. The press will then begin to rotate after about 20 seconds, according to
choice of programme. At a setting of 0.5 Bar
the press will only rotate at a low speed whilst pressing. From 1.0 bar it first
rotates fast and switches back to the slow speed when it reaches 0.5 bar. In our programme the press
runs slowly until it reaches a pressure of 0.5 bar then it switches off. Now
begins the dripping time (set by the manufacturer at 2 mins). After this time
the press rotates again and presses as the first time up to the selected
pressure of about 0.5 bar. Now the dripping for two mins begins again. This
process repeats as often
as is set by the 'Number of Re-pressings' switch. After the re-pressings the
press quickly runs to a stop and crumbles until it reaches the exit-setting.
Now it switches to the next position, in our example programme - a second time
at 0.5 bar. Here also it runs slowly up to 0.5 bar, represses and crumbles.
After the crumbling comes the pressing position 1.0 bar. From here the press
runs with a fast pressing until it reaches the switchover pressure of 0.5 bar
and then presses at a slow speed to 1.0 bar and switches off. After the
re-pressings the press runs slowly to the switchover speed of 0.5 bar then
goes into a fast crumbling run. This process repeats itself in all selected
pressing settings. After carrying out the last pressing level set the
press runs down and the automatic turns off. The programme is finished. Emptying the press: Make sure juice tray has
been emptied. With press plates in top position, take the
covers/doors and hinge rods off (place these so they can't be damaged). The press can only be
emptied using the yellow 'hand' control switch, as after the covers are
removed the automatic function and slow or fast crumbling are out of action. To use this :-
move selection switch to 'hand'
briefly press white 'on' button, until it lights up
the press cage can be rotated slowly using the yellow hand control switch. After it turns a little the press-cake will fall
downwards on to the ground or preferably on to a special trolley. Interruption of programme: If the programme is
interrupted by a fault, power cut or by pressing the emergency stop button, the
programme is stored. It can be set in motion again with a short press on the
white 'on' button, until it lights up. If there is a fault the
red 'interruption' light shines. A fault can arise through over loading of the
motor following a voltage loss or under-voltage of the main current. Examine the
fuses inside the 'control panel', the blue buttons in the switchbox under the
relays K18 and K19 must be pressed. After that by pressing the white 'on' switch
the automatic programme can be set running again. The programme goes on from the
point at which the fault occurred.
Winegrowers Supplies
- Instructions for using Willmes WHA 2000 fully-automatic Horizontal screw Grape presses:
every 2 or 3 days during
use. Weekly - oil the drive chain through the hole in the chain protection
case.
check the direction in which the press turns;
indicated by a sign to the right of the control panel.
in the mains cable.
'Slow
Crumble'. Otherwise the power requirement/surge is massive.
Filling the press:
Make sure that the collecting vat
is under the Press and connected to pump/tank.
As
with all horizontal presses the press-cage should be at least half full. This
is so that when only the press-cake is left there is sufficient of this to
cover the pressure sensor and to ensure that the press-plates do not come too
close together. When the quantity to be pressed is more than a press full,
carry out a very light pressing programme (say once at 0.5 bar) then stop and
add the rest of the grapes.