7 Maintenance
7.1 Maintenance instructions
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.
CAUTION
Danger of injury from moving parts
After a power failure or a standstill as a result of overheating, the motor restarts automatically. There
is a risk of injury to fingers and hands if they enter the operating range of rotating parts.
► Safely disconnect motor from the mains.
► Secure the motor against reactivation.
► Dismantle the vacuum pump for inspection, away from the system if necessary.
NOTICE
Damage caused by unsuitable cleaning agents
Unsuitable cleaning agents damage pump parts.
► Use only approved cleaning agents to clean pump parts.
► Use only a clean dry cloth to clean the diaphragms and valves.
► Do not use any alcohol or other cleaning agents to clean the diaphragms and valves.
NOTICE
Danger of property damage from improper maintenance
Unprofessional work on the vacuum pump will lead to damage for which Pfeiffer Vacuum accepts no
liability.
► We recommend taking advantage of our service training offering.
► When ordering spare parts, specify the information on the nameplate.
The following section describes the tasks for cleaning and maintaining the vacuum pump.
Valves and diaphragms are wear parts.
Component
Operating hours
Diaphragms
15 000
Valves
15 000
Motor bearing
40 000
Tbl. 6:
Typical service life with normal use
Prerequisites
● Vacuum pump switched off
● Vacuum pump vented from atmospheric pressure
● Vacuum pump cooled
Required materials
● Cloth (clean, lint-free)
● Water or mild soap solution
Maintenance
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