Retsch MM 500 Vario, Manual

Page: 44 / 87

Operating the Device
44
6.6 Inserting the Grinding Jar
NOTICE
N17.0067
Strong vibrations and loud noise
Uneven loading
−
The device can generate particularly strong vibrations and loud noise if
loaded unevenly.
•
Always insert two grinding jars of equal size, even if you only want
to grind one sample. In this case leave the second grinding jar
empty (no grinding balls, no sample material)!
•
Switch the device off immediately if it is vibrating strongly and
making a loud noise, and check the number, the gross weight and
correct position of the grinding jars.
NOTICE
N18.0011
Wear or damage to the grinding balls and grinding jars
Use of different materials
−
Greater wear or damage is possible when operating the device with
grinding balls and grinding jars whose individual components are made of
different materials.
•
Only use grinding balls and grinding jars made of the same material.
NOTICE
N19.0000
Damage to the device
Grinding jars incorrectly inserted
−
In order to prevent damage to the device during grinding, the grinding jars
must be correctly and firmly positioned in the guide of the grinding jar
supports when inserted.
•
When inserting the grinding jars, ensure that the grinding jars do
not become misaligned, but are positioned firmly and correctly in
the grinding jar guide.