VACUUBRAND MZ 2C NT VARIO without controller (o.C.) - Manual (Page 21)

page 21 of 76
➨
Switch off the pump. Disconnect the electrical
power cord and wait two minutes before starting
maintenance to allow the capacitors to discharge.
➨
Note: The pump may be contaminated with process
chemicals, which have been pumped during operation.
Ensure that the pump is completely decontaminated
before maintenance commences.
+
Take adequate precautions to protect people from the
effects of dangerous substances if contamination has
occurred. Use appropriate protective clothing, safety
goggles and protective gloves.
+
Wear parts have to be replaced regularly.
+
Never operate a defective or damaged pump.
+
Vent the pump before starting maintenance. Isolate
the pump and other components from the vacuum sys-
tem. Allow sufficient cooling of the pump. Separate the
pump from the coolant circuit and drain condensate, if
applicable.
Ensure that maintenance is done only by suitably trained
and supervised technicians. Ensure that the maintenance
technician is familiar with the safety procedures which re-
late to the products processed by the pumping system.
Only dismantle the pump as far as necessary.
NOTICE