Retsch AS 200 control - natural frequency - Manual (Page 14)

Retsch GmbH 14
Clamping with the clamping unit -
comfort
H I K
I K
Screw support rod H into the sieve plate and
tighten locknut.
Place selected sieve set centrally on the sieve
plate.
Put the clamping cover – comfort over the
support rods, causing the red lever I to be
pressed upwards; place your index finger and
middle finger on the casing. The green lever K
remains in the upper position.
Slide the clamping cover up to the top sieve.
Press the green lever K downwards several
times; while doing this the lower red lever I
should not be moved.
To loosen, press the red lever I upwards and the
green lever K downwards. The sieve cover can
then be pushed upwards.
KK
When using the clamping unit comfort we recommend
that the support rods are cleaned from time to time.
Furthermore after a certain time the comfort sieve
clamping unit produces unavoidable clamping notches
KK on the support rods. These are produced through the
mode of action and can make reliable clamping more
difficult.
For this reason it is important to check the support rods
for clamping notches KK in the clamping region from
time to time and, if necessary, to turn them through
approx. 90°. For this an open-jawed spanner with an
opening of 19 mm is required.
Turning the support rods:
Unscrew locking nut.
Turn support rods through approx. 90°.
Firmly retighten the locking nut.
We recommend that the support rods are replaced when
reliable clamping is no longer possible.