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ror message at the controller. Switch off the pump and
disconnect from the power source. Identify and eliminate
the cause of failure. Wait approx. five minutes before re
-
starting the pump.
Maintenance and repair
In order to comply with laws (occupational, health and
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. 68) 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-
In normal use, the lifetime of the diaphragms and valves is
typically 15,000 operating hours. Bearings have a typical
durability of 40000 h.
➨
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 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
