Retsch DM 400 - Manual (Page 42)

Servicing
42
Function part Task Test Service interval
Grinding chamber sen-
sor Start inhibitor Open grinding cham-
ber; start; error mes-
sage Always before use
Grinding chamber safe-
ty interlock Start inhibitor Do not close grinding
chamber electrically;
start; error message Always before use
Grinding container
protective equipment Start inhibitor Sample material con-
tainer not inserted;
start; error message Always before use
Grinding disc gap width Crush function Check distance Always before use
7.1 Grinding discs
The grinding discs wear after a certain period of time according to
sample material. Check the surfaces at specific intervals. Refer to
the information in the chapter
“Reverse operation” and the chapter
below “Replacing the grinding discs (5 + 6)” to change the direction of
rotation or to replace the discs.
7.2 Replacing the grinding discs (5 + 6)
CAUTION!
The device must be connected to the mains to open the
grinding chamber and to adjust the gap width.