Retsch GM 300 - Manual (Page 22)

Operating the machine
22
Fig. 9: Inserting the sealing ring
Fig. 10: Preparing the knife and grinding jar, inserting the knife
NOTE
• Check the state of the V-ring seal (V) regularly.
– The bottom edge of the lip seal (DL) must be clean and smooth.
• Replace the V-ring seal when the lip seal is brittle, cracked, frayed or
damaged in order to prevent rust and damage to the cutter bearing.
(V-ring seal part number: 05.111.0243)
5.7 Inserting the grinding jar
CAUTION
When grinding with dry ice(CO
2
), give consideration to the quantity of dry ice used
and the volume of gas that will develop accordingly.
The grinding jar lids have varying ventilation characteristics and can be pressed
upwards by the large volume of the generated gas.
CAUTION
Scalding/burns
Hot grinding jar
–
Depending on the grinding process, the material being ground and
accordingly the grinding jar can become very hot.
• Wear appropriate protection always when touching the grinding jar if
it is hot.
1. Assemble the knife.
1. 3. 2.
V
DL