7 Maintenance
7.1 Maintenance information
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.
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 vacuum side.
3. Safely disconnect the drive motor from the mains.
4. Secure the motor against switching back on.
5. Remove the vacuum pump from the system if necessary.
6. Dispose of used lubricant according to applicable regulations in each case.
7. For maintenance work, only dismantle the vacuum pump to the extend needed.
8. Use only for cleaning pump parts.
9. Avoid residues of cleaning agent inside the vacuum pump.
7.2 Checklist for inspection and maintenance
You can carry out maintenance work of
Maintenance Level 1
by yourself.
We recommend Pfeiffer Vacuum Service for carrying out maintenance work of
Maintenance Level 2
and
Maintenance Level 3
(revision). If the required intervals listed below are exceeded, or if mainte-
nance work is carried out improperly, no warranty or liability claims are accepted on the part of Pfeiffer
Vacuum. This also applies if original spare parts are not used.
Notes on maintenance intervals
Depending on the process, the required maintenance intervals can be shorter than
the reference values specified in the table.
● Consult with Pfeiffer Vacuum Service about shorter maintenance intervals for
extreme loads or for specific processes.
Maintenance
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