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Nidec NVS-07 Bedienungsanleitung Seite 12

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6. Checking the mixed state
• Continue mixing for a while. When the electric current
value of the motor becomes stable, return the selector
switch back to "STOP" and Turn OFF the vacuum pump
switch to check the state of clay. If the clay is too hard,
add water. If it is too soft, add more dry or leather hard
clay to be processed. Restart mixing again.
Note)
The clay becomes harder when it is extruded when de-aired.
Therefore, the mixed clay should be softer than what is desired
for use.
7. Vacuuming (de-airing) process
• When the clay reaches the appropriate consistency,
remove any clay that might be clogging the air inlet. If
clay covers the air inlets, the readings on the vacuum
gauge will increase, but the inside of the barrel may not
be de-aired.
• Make sure the nozzle cover is clean, then place it over
the nozzle.
• Close the vacuum's pressure relief valve, then turn ON
the vacuum pump. The reading on the vacuum gauge
will gradually increase. The gauge should reach a
minimum of 0.09 Mpa.
• Set the selector switch to MIX. Slowly set the speed
control to 6 to 8.
Note)
If the vacuum pressure suddenly increases, the gap between
the door, near the air inlet, and the case might be clogged
with clay. Remove the clay in that gap. If this does not fix the
issue, there might be too much clay being mixed. Decrease
the amount of clay.
• Mix clay with water and then continue the operation
of the vacuum pump and the screw for about three
minutes.
11
Set the selector
switch to STOP
Comfirm the
electric current
value showed in
the indicator
Clean both surfaces of the hopper cover and the case
(including the gasket).
Gap between hopper cover and case
If the gap between the hopper cover, the barrel, and also the air
inlet are clogged with clay, de- airing will not occur.
English
Remove clay
between the hopper
cover and the case
and from the air inlet.
Air inlet

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