Retsch SM 300 - Manual (Page 24)

Operating the machine
24
Fig. 12: Inserting the bottom sieve
5.6 Replacing the rotor
CAUTION
Injuries in the form of cuts
Sharp cutting edges on the rotors and cutting bars
– The sharp cutting edges on the rotors and cutting bars can injure hands.
• Wear protective gloves when replacing the cutting rotors and
cleaning the grinding chamber.
• Use the rotor extraction tool when handling the cutting rotors.
NOTE
Reduction of tool service life
Abrasive sample materials
–
The presence of abrasive composite materials during grinding can
considerably reduce tool service life.
• When grinding electronic scrap, take the properties of the composite
materials into account.
NOTE
Damage to mechanical components
Blockages typical of cutting mills
–
When coarse, solid material is fed in for grinding, the high feeding capacity
of the standard rotor can cause blockages that are typical of the cutting
mills.
• If blockages occur, switch off the mill immediately and remove the
clogging material.
NB
2.H0055
It is necessary to check whether the cutting gap is larger than 0.3 mm before each
grinding operation using the parallel section rotor.
• Open the grinding area door.
I