vacuubrand MZ 2C NT+2AK, Инструкция по эксплуатации

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page 22 of 80
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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.
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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.
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Wear parts have to be replaced regularly.
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Never operate a defective or damaged pump.
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Check every motor capacitor regularly by measuring
its capacity and estimating its time in operation. Re-
place old capacitors early enough to prevent a failure
in operation. If an old motor capacitor fails, the capaci-
tor may get hot. It may even melt or emit a flame, which
could be dangerous for persons and equipment in
the vicinity . The capacitors have to be replaced by an
electrician.
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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.
Clean polluted surface with a clean, slightly moistened
cloth. To moisten the cloth we recommend water or mild
soap.
Interventions on the device
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Work on the equipment may be performed only by a
qualified person.
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Work on electrical equipment in particular may be per-
formed only by qualified electricians.
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Ensure that maintenance is done only by suitably
trained and supervised technicians or at least by an
instructed person.
NOTICE