Replacing Diaphragms And Valves - vacuubrand MZ 2C NT+2AK Instructions For Use Manual

Replacing diaphragms and valves

+ Please read section "Replacing diaphragms and valves" com-
pletely before starting maintenance.
The pictures may show other versions of pumps. This does not change
the method of replacing diaphragms and valves.
➨ Never operate the pump if covers or other parts of
➨ Before starting maintenance, disconnect the electri-
➨ Ensure that the pump cannot be operated accidentally.
➨ Note: The pump might be contaminated with the pro-
➨ Avoid the release of pollutants.
+ Never operate a defective or damaged pump.
+ Take adequate precautions to protect people from the
+ Check every motor capacitor regularly by measuring
+ Allow sufficient cooling of the pump before starting
+ Vent the pump and isolate it from the vacuum sys-
page 54 of 80
the pump are disassembled.
cal power cord. Wait five seconds after isolating the
equipment from AC power to allow the capacitors to
discharge.
cess chemicals that have been pumped during opera-
tion. Ensure that the pump is decontaminated before
maintenance.
effects of dangerous substances that may have con-
taminated the pump and may be released upon dis-
assembly. Ensure that the maintenance technician is
familiar with the safety procedures which relate to the
products processed by the pumping system.
Use appropriate protective clothing, safety goggles
and protective gloves.
its capacity and estimating its service life. Replace old
capacitors early enough to prevent a failure. The ca-
pacitors must be replaced by a trained electrician.
maintenance. Drain condensate, if applicable.
tem before you start maintenance.