Retsch Cryomill - Manual (Page 33)

Operating the machine
33
Fig. 22: Securing the grinding jar
• First tighten the screw (SM) by hand (hand-tight).
• Then tighten the lock nut against the cooling jacket. Use the locking pin
provided to do this.
Ensure that the grinding jar is tightly screwed to the cooling jacket, otherwise liquid
nitrogen can escape.
The lock screw (SM) must be screwed tight and secured with the lock nut so that
no sample material escapes from the grinding jar.
CAUTION
Risk of injury to eyes and skin
The cooling jacket and grinding jar reach very low temperatures
during grinding.
–
Risk of injury to eyes and skin from severe frostbite
• As a matter of principle, always wear goggles and
protective gloves when opening the cooling jacket and the
grinding jar.
Use the opening aid (F) that is kept on the side of the device to remove the
grinding jar .
• Unscrew the lock nut (KM)
• Remove the screw (SM)
• Mount the opening aid (F) on the grinding jar and open it.
KM
2.
1.
SM