4 Specific safety instructions and the symbols used
Unsafe practices and other important information are emphasised in this manual.
Warnings are emphasised by means of special signs.
Always read the manual before using the Mixer!
4.3
Basic safety measures during normal operation
Before switching on the machine, make sure you know what to do in the event of an incident.
The machine may only be operated by qualified, authorised personnel, who are familiar with the operating instructions (including
those for the sub-assemblies) and are able to work accordingly!
Replace all hoses regularly as a preventive maintenance measure, even if not obviously damaged). (Observe the manufacturers’
information)
If components of the installation are temperature-controlled, there is a risk that parts not insulated and supply lines may catch
fire above a temperature of 65°C. In this case, the operator must protect the hot parts against contact.
If water is used as a barrier medium, it must be cooled at temperatures above 85°C, otherwise, the seal may be damaged.
NOTE!
Check the level (sight glass) of the flush tank every day. If the axial face seal is flushed with fresh water, make sure the flow
volume is sufficient (0.25-0.5 l/min.).
NOTE!
The machine may not be commissioned (even briefly) if the barrier medium circuit is not intact, otherwise the axial face seal
may be destroyed.
NOTE!
The machine is not suitable for processing pure dry substances without the use of fluids. This can cause serious damage to
the machine.
NOTE!
When changing the dry substance, check whether the materials of the axial face seal and of the O-rings are still compatible. In
some cases, it is necessary to change the parts for different materials. If there is any doubt, consult the supplier.
NOTE!
After all the installation work has been completed, the movement of the drive shaft must be checked on the machine by rotating
it manually before the drive is switched on. Make sure the drive cannot be switched on accidentally.
9
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