Retsch BB 200 - Manual (Page 14)

04/05/2012 Retsch GmbH
14
Adjust the gap width
Fig. 4
* Start the BB 200 (idling, without product).
* Loosen the lock nut N (turn to the left).
* Turn the spindle O to the right to reduce the gap.
* Turn the spindle O to the left to enlarge the gap.
* The pointer K shows the approximate gap width at the scale
M.
* Re-tighten the lock nut N (turn to the right).
Fig. 4
Adjusting the zero setting for the gap width
* Start the BB 200 (idling, without product).
* Loosen the lock nut N (turn to the left).
* Turn the spindle O to the right until you hear the two
breaker arms make contact.
* Loosen the machine screws U (turn to the right).
* Slide the 0 mark at the scale M to align with the tip of the
pointer K.
* Re-tighten the machine screws (turn to the right).
Fig. 4
Fill product to be ground
The fill hopper B can accept product up to grain sizes of 90
mm.
This hopper is not intended, however, to store a reserve of
product; its function is exclusively to feed material to the
grinding chamber and to keep ground product from being
ejected.
Fig. 5
Fig. 5
If the grinding chamber W is filled more than 2/3 full, then the
guide plates of the fill hopper could be damaged; the moving
breaker arm would force the product into the crusher housing,
behind the breaker arm.