Retsch ZM 200 - Manual (Page 6)

08.02.2012 Retsch GmbH
6
0003
Safety directive summarised, part 2
Feeding in comminution material
Do not feed in comminution material until the machine has been started.
Mechanical components could be damaged when starting from standstill with the comminution material
already fed in.
When feeding in comminution material, the anti-rebound fitting must be installed.
Danger that the comminution material will be sprayed about.
Unsuitable comminution material
Some comminution materials form explosive atmospheric mixtures. Check the properties of your
comminution material.
Explosion hazard
Dusty comminution material can escape through the filling hopper during grinding. Use suction extractors if
the comminution material is toxic or otherwise hazardous to health.
Danger of breathing in dust hazardous to health.
Comminution methods
Do not pre-grind without the ring sieve.
The collecting base can suffer serious damage
The rotor can damage the cassette cover.
Comminution by cold grinding
When cold grinding with liquid nitrogen, always fit the anti-rebound fitting X into the filling hopper.
Danger of injuries to eyes and skin from extreme freezing.
Wear safety gloves and goggles, The temperature of the liquid nitrogen is -196°C
Danger of injuries to eyes and skin from extreme freezing.
When cold grinding, do not forcibly remove the plug-on rotor, which jams easily for physical reasons, but
rather wait for the temperature to level out.
Forced removal causes damage to the motor shaft and the rotor.
Paper filter with retainer
The volume able to be taken up by the paper filter depends on the density of the grinding material and the
hole width of the ring sieve.
The paper filter can be destroyed by overfilling and by the weight of the comminution material
Cleaning
Do not clean the ZM200 with flowing water.
Mortal danger from electric shock
Only use a cloth dampened with water. solvents are not permitted.
Maintenance
The easy running of roller 1 on the trannion piece is essential for secure closing of the housing cover.
These operating instructions do not contain any repair instructions. In the interests of your own safety,
repairs should only be performed by Retsch GmbH, an authorised representative or by Retsch service
technicians.