Retsch MM 400 - Manual (Page 17)

2/8/2012 17 Retsch GmbH
Inserting / replacing the milling cups
Place the milling cups, filled with the material to be milled and
the milling balls, into the centering points Z of the clamping
device and clamp firmly. Fig.1/2
Remove the locking pin SB upwards from the groove and
turn through 90°. Fig.1/2
This unlocks the locking device.
Turn the handwheel HD counterclockwise until the max.
clamping range is reached. Fig.1/2
Turn the locking pin SB back through 90° until it engages in
the groove again.
Insert milling cup and press lightly into the centering point Z
Turn the handwheel HD clockwise with two fingers until the
milling cup just fits, free of play, in the holder. Then
continue to turn the handwheel clockwise through 6 – 8
easily audible “clicks”, while at the same time the locking
pin SB is raised and lowered with clearly audible “clicks”.
The engaged locking pin reliably prevents automatic opening of
the milling cup holder.
If the locking pin SB cannot be pulled upwards to release it,
unlocking should not be forced with a hammer or similar tool.
Otherwise the hardened locking pin can break off.
Briefly retension the handwheel HD in the clockwise direction –
the locking pin can then move freely again.
To remove the milling cup lift the locking pin and turn the
handwheel in the opposite direction to tighten.
In order to guarantee quiet running of the MM 400 both milling
positions must be loaded with approximately the same mass.
Ensure that the milling cups are inserted correctly in the
guides.
Otherwise the milling cup will be damaged when the machine is
started.
When removing and opening hot milling cups always wear
protective gloves.
Danger of burning the hands.
Setting the milling time
• Switch on the MM 400 with switch D
Preselect time:
• Set required milling time with + / - buttons N+ and N-
• Short pressing of N+ or N- adjusts the time by one second or
one minute. When pressed for longer the display runs
continuously without a pause.
If 99.0 minutes is exceeded the display L shows 0.10
seconds again.
Z
SB
HD
N - N +
Abb.1
Abb.2
Z
SB