MAX
MIN
MAX
MIN
MAX
MIN
Fig. 12:
Checking the lubricant level
Checking the lubricant level
1. Shut down the vacuum pump.
2. Wait for 1 minute and check the lubricant level at the sight glass.
– Check the lubricant level on the motor side and the vacuum side.
3. Make sure that the level is in the area at the middle of the inspection glass or up to 3 mm above it.
4. Top up lubricant as required.
5. Check the lubricant level daily during continuous operation, or prior to each activation.
7.4 Changing lubricant
WARNING
Health hazard and environmental damage from toxic contaminated lubricant
Toxic process media can cause lubricant contamination. When changing the lubricant, there is a
health hazard due to contact with poisonous substances. Illegal disposal of toxic substances causes
environmental damage.
► Wear suitable personal protective equipment when handling these media.
► Dispose of the lubricant according to locally applicable regulations.
CAUTION
Scalding from hot lubricant
Danger of scalding when draining lubricant if it comes into contact with the skin.
► Wear protective equipment.
► Use a suitable collection receptacle.
NOTICE
Property damage from using non-approved lubricant
Attainment of product-specific performance data is not ensured. If non-approved lubricants are used,
all liability and warranty claims against Pfeiffer Vacuum are excluded.
► Use approved lubricant only.
► Use alternative, application-specific lubricants only following consultation with Pfeiffer Vacuum.
Pfeiffer Vacuum recommends determining the precise service life of the lubricant in
the first operating year.
The usable life may deviate from the reference value specified depending on thermic and
chemical loads, or due to penetrating process media in gear and bearing chambers.
Checking the fill level
The correct fill level is between the MIN/MAX markings or within the ring mark on the sight
glass.
Sticker for lubricant change
● Note the date of the lubricant change.
● Contact Pfeiffer Vacuum if you need a new sticker.
Maintenance
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