Retsch DM 400 - Manual (Page 34)

Working with the disc mill
34
1. To move from the "Parameter" menu to the "Check/Setup" menu,
actuate the arrow buttons (c, d) until the - and + signs which are
visible on the bottom right of the display are highlighted in black!
Then use the buttons + (a) or - (b) to move to the Check/Setup
menu!
2. Select reverse using the arrow buttons (c, d), and activate (on) or
deactivate (off) reverse operation with + (c) or - (d) button.
NOTICE!
Grinding discs are subject to natural wear after
longer periods of use and must be replaced where
necessary. If you ascertain that the grinding discs
are worn on one side, they need not be replaced
immediately. Reverse the direction of rotation of the
drive motor using the reverse setting. The crushing
edges of the grinding discs that had been on the
back are then in use. At this point at the latest you
should order spare grinding discs (see chapter
“Replacing the grinding discs (5 + 6)”)
5.6 Adjusting the grinding time
1. To move from the "Check/Setup" menu to the "Parameter" menu,
actuate the arrow buttons (c, d) until the - and + signs which are
visible on the bottom right of the display are highlighted in black!
Then use the buttons + (a) or - (b) to move to the Parameter
menu!