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➨ Never operate the pump if covers or other parts of the
pump are disassembled. Ensure that the pump cannot
be operated accidentally.
➨ Isolate equipment from power supply before re-
moving the cover!
➨ Before starting maintenance, unplug the equipment and
wait 5 seconds to allow the capacitors to discharge.
➨ Attention: The pump might be contaminated with nox-
ious or otherwise dangerous process chemicals that
have been pumped during operation. Ensure that the
pump is decontaminated before maintenance.
+ Take adequate precautions to protect people from the
effects of dangerous substances if contamination has
occurred. Wear appropriate safety-clothing when you
come in contact with contaminated components.
+ Wear parts have to be replaced regularly.
+ Never operate a defective or damaged pump.
+ Check every motor capacitor regularly by measuring its
capacity and estimating its operation time. Exchange
old capacitors early enough to prevent a failure. When
motor capacitors fail, they can get hot enough to melt
or cause a ame which could be dangerous for per-
sons and equipment in the vicinity. Motor capacitors
have to be replaced by an electrician.
+ Before starting maintenance, vent the system and al-
low sufcient cooling of the pump. Drain condensate, if
applicable. Avoid the release of pollutants.
Ensure that maintenance is carried out only by suitably
trained and supervised technicians. Ensure that the mainte-
nance technician is familiar with the safety procedures which
relate to the products processed by the pumping system.
In order to comply with law (occupational, health and safety
regulations, safety at work law and regulations for environ-
mental protection) vacuum pumps, components and meas-
uring instruments returned to the manufacturer can be re-
paired only when certain procedures (see section ”Repair
- Maintenance - Return - Calibration”) are followed.
NOTICE
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