20
Maintenance
7
Maintenance
7.1
Precautions
Turn off the vacuum pump, vent to atmospheric pressure and allow to cool.
Disconnect the drive motor from the mains and secure it so that it cannot be switched
on.
Only dismantle the pump as far as necessary to carry out maintenance.
Dispose of used operating fluid in compliance with local regulations.
When using synthetic operating fluids or working with toxic substances or substances
contaminated with corrosive gases, the relevant instructions governing their use must
be observed.
Use only alcohol or similar agents for cleaning pump parts.
Magnetic coupling
The following safety instructions are only valid for the
disassembly
of the drive system
for vacuum pumps with
magnetic coupling
!
WARNING
Danger of injury from moving parts!
After power failure or motor shutdown due to overheating, the motor may restart auto-
matically.
Secure the motor so that it cannot be switched on while any work is being performed
on the pump.
If necessary, dismantle the pump from the installation for inspection.
WARNING
Pump parts may be contaminated from pumped media!
Danger of poisoning due to contact with harmful substances.
Decontaminate the pump before carrying out any maintenance work.
In the event of contamination, take suitable safety precautions to prevent your health
from being harmed by any dangerous substances.
DANGER
Strong magnetic field in the vicinity of the drive system!
Danger to life for persons with cardiac pacemakers when the drive system is disassem-
bled.
Persons with cardiac pacemakers must not enter the area (
≤
2m) of the magnetic
field.
Rooms in which open couplings are accessible must be identified: ’’ No trespassing
for persons with heart pacemaker’’!
Disassembled magnetic couplings must be kept away from computers, data storage
media and other electronic components.
