Retsch DM 200 - Manual (Page 12)

16.11.2006 Retsch GmbH
12
Doc.Nr. GB 98.740.9999
Adjusting the Gap Width
You may adjust the gap width between the milling disc in
the housing and in the door just by adjusting the gradu-
ated rotating crank mounted below the motor. 1 gradua-
tion line = 0.01 mm.
You may adjust the gap from 0.1 to approximately 5 mm.
Rotating Crank
Caution! Do not go below the minimum gap width of 0.1
mm.
You may control check the gap width setting through a
window behind the funnel tube by means of a sensing
gauge.
Window
You may also adjust the gap width when the machine is
running.
Material that is difficult to mill should be milled at least
twice. Select a larger gap width as pre-crushing for the
first pass and then you achieve the desired final fineness
with the small gap in the second milling pass.
Caution !
The smallest gap width is 0.1 mm.
The milling discs may not touch one another because otherwise
this could damage the milling discs.
Starting the Machine
It is only possible to start the DM200 when the door is
closed and the collecting container has been inserted.
The ON-OFF switch is on the right-hand side of the
DM200.
ON-OFF switch
position [I] DM200 starts
position [0] DM200 stops
The ON-OFF switch also acts as a protective motor
switch.
If the motor is overloaded or if there is another electrical
fault, this switch disconnects the DM200 from the mains.
The DM200 can only start up when the DM200 is
manually started with the ON-OFF switch.
Feeding the Material to be Crushed
After the gap has been set and the DM200 has been
started, you commence material feed. Do not exceed a
maximum edge length 20 mm. Open the lid of the funnel
tube for this purpose.
the lid of the funnel tube
When feeding the material to be crushed, please ensure
that the funnel tube lid is closed because otherwise the
material to be crushed could fall back.
Furthermore, the quantity of fed material to be crushed
depends upon its millability. Therefore, note the decreas-
ing intensity of the milling sound to ascertain the opti-
mum feed quantity.
Caution!
Only feed the material to be crushed after having started the
DM200.
If the DM200 starts up filled with material to be crushed, this
may lead to damage in the mechanical component parts.