BUCHI Syncor Polyvap - Manual (Page 31)

Syncore Platform
31
Adjusting the unbalance compensation
Never make any adjustments while the base plate is still
moving. Introduction of the tool into the drive unit while it is
still moving can damage the unit and cause personal injuries.
The base plate must be in its pre-defined stopping position
be fore setting a new unbalance compensation. To ensure
this, switch the unit ON and let the base plate rotate at least
one full rotation.
Exact positioning
First bring the internal adjustment mechanism for unbalance
 and the opening  for introduction of the tool exactly
into position.
This positioning is achieved using the tool supplied , which
is also used to adjust the eccentricity. First insert this tool
into the opening on the right side of the single platform to
adjust the eccentricity.
Introduce the tool down to the stop tilted slightly upward and
under gentle pressure.
Introduction of the tool for adjusting unbalance
Introduce the tool into the opening on the left side  of the
single platform. Introduce the tool down to the stop tilted
slightly upward and under gentle pressure.
Turn the tool to adjust the distance  of the counterweight
from the central axis. Up to a maximum of 50 turns are pos-
sible. Whether or not the tool has been introduced correctly
can be checked by observing the markings engraved on
the tool itself.
Turning the tool should cause the markings to move inward
with respect to the unit housing (when turned counter clock-
wise) or outward (when turned clockwise).
Turning clockwise reduces the distance of the balancing
weight from the axis — compensating for lighter racks.
Turning counterclockwise increases the distance of the
balan cing weight from the axis.. compensating for heavier
racks. The engravings on the adjustment wrench are used to
enable a quick re-finding of settings that have already been
optimized for a given configuration.
Figure 24: Exact positioning
5 Operation
Figure 25: Adjusting the unbalance compensation




