Maintenance And Repair - vacuubrand MZ 2C NT+2AK Instructions For Use Manual

nate the cause of failure. Wait approx. five minutes before
restarting the pump.

Maintenance and repair

In order to comply with laws (occupational, health and
NOTICE
safety regulations, safety at work law and regulations for
environmental protection) vacuum pumps, components
and measuring instruments can only be returned when
certain procedures (see section „Repair - Maintenance -
Return - Calibration", pg. 70) are followed.
Take advantage of our service seminars, which put special
focus on the maintenance and repair of vacuum pumps.
For details and for the online "Instructions for repair" man-
ual see www.vacuubrand.com.
In normal use, the lifetime of the diaphragms and valves
is typically 15,000 operating hours. Bearings have a typi-
cal durability of 40000 h. Motor capacitors have a typi-
cal durability in the range of 10000 to 40000 h depending
strongly on operation conditions including ambient tem-
perature, humidity or load.
• Note: In case of supply voltage below 115 V, the lock
of the cutout might be impaired and the pump may
restart on its own after sufficient cooling down. Take
appropriate precautions, if an automatic restart of the
pump may lead to a dangerous situation (e.g., switch
off the pump and disconnect from the power source).
➨ Ensure that the pump cannot be operated acciden-
tally. Never operate the pump if covers or other
parts of the pump are disassembled.
➨ Switch off the pump. Disconnect the electrical
power cord and wait five seconds before starting
maintenance to allow the capacitors to discharge.
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