7 Maintenance
7.1 Maintenance information
DANGER
Risk of explosion when carrying out installation and maintenance work in potentially explo-
sive atmospheres
There is a risk of explosion if unsuitable tools are used in potentially explosive atmospheres.
► Transport, installation and maintenance work may not be performed in potentially explosive at-
mospheres.
► Always shut down the system before commencing any work on the system.
WARNING
Health hazard through poisoning from toxic contaminated components or devices
Toxic process media result in contamination of devices or parts of them. During maintenance work,
there is a risk to health from contact with these poisonous substances. Illegal disposal of toxic sub-
stances causes environmental damage.
► Take suitable safety precautions and prevent health hazards or environmental pollution by toxic
process media.
► Decontaminate affected parts before carrying out maintenance work.
► Wear protective equipment.
WARNING
Risk of crushing from rotating parts
Fingers and hands may be caught by rotating pistons within the connection flange. This results in se-
vere injuries.
► Keep limbs out of the reach of the roots pump.
WARNING
Danger of injury from strong magnetic field
There is a risk of injury for people with pacemakers and medical implants.
► Make sure that such individuals do not enter the sphere of influence (≤ 2 m) of the magnetic field.
► Identify rooms in which magnetic couplings are openly accessible with the symbol: "
No access
for people with pacemakers
".
► Always keep disassembled couplings away from computers, data carriers, and other electronic
components.
NOTICE
Damage from incorrect maintenance work
Unprofessional work on the vacuum pump will lead to damage for which Pfeiffer Vacuum accepts no
liability.
► Ensure that only the following categories of persons are authorized to perform servicing tasks:
– Pfeiffer Vacuum employees with corresponding qualifications.
– Persons who have undergone training from Pfeiffer Vacuum and have subsequently taken
part in refresher courses at intervals of no more than every two years.
– Persons who have been awarded official certification in accordance with Article 14 (6) Betr-
SichV (Ordinance on Industrial Safety and Health).
► We recommend taking advantage of our service training offering.
Maintenance instructions
1. Shut down the vacuum pump and allow it to cool if necessary.
2. Vent the vacuum pump to atmospheric pressure via the intake side.
3. Safely disconnect the drive motor from the mains.
Maintenance
40/60
