Retsch PM400, Manual

Page: 27 / 60

Operating the machine
27
Fig. 12: Emergency release procedure
•
At the same time as pushing the key ( SN ) in, rotate it in a clockwise direction
as far as it will go.
–
The lock is open and the lid can be lifted up.
5.8 Inserting the grinding jar
CAUTION
V0049
Ejected objects
Grinding jar not clamped
–
Grinding jars or clamping mechanisms can be ejected. This
results in a risk of injury.
•
Never leave loose clamping devices without clamped
grinding jars in the grinding jar support.
•
Before starting the machine, ensure that all grinding jars
are clamped.
•
Ensure that the red sleeve of the clamping mechanism is
clicked into place.
•
In the case of extended grinding processes, check that
the grinding jars are secure at the following intervals:
After 3 min, after 1h, after 5h then every 10-12h.
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.
NOTICE
H0068
Strong vibration and loud noise
Uneven load
–
The device can produce very high levels of vibrations and noise when
loading is uneven.
•
Always use 2 or 4 grinding jars opposite each other.
•
When using 2 grinding jars, the two free grinding stations must be
secured using a clamping bolt and a lead frame.
•
The grinding stations must be operated with the identical grinding
jars and with the same weight during each grinding process.
•
Switch the device off immediately if there are high levels of vibration
and noise, and check the number and net weight of the jars.