Maintenance
25
7.2
Changing the lubricant
Gear chamber
The intervals for replacing lubricant in the gear and bearing chambers are heavily depen-
dent upon the operating conditions.
Change the lubricant at least once every year.
Turn off the vacuum pump, vent to atmospheric pressure and allow to cool.
Unscrew lubricant filler screws 15.
Unscrew the lubricant drain screws 16 and drain the lubricant; pay attention to the O-
rings!
Fig. 13: Drain the lubricant
Screw in lubricant drain screws 16; pay attention to the O-rings.
Fill with new lubricant and check fill level.
Screw in lubricant filler screws 15.
WARNING
Hot operating fluid!
Danger of burns when draining due to contact with skin.
Wear suitable protective clothing.
Use a suitable collecting vessel.
Depending on the applications, Pfeiffer Vacuum recommends determining the ex-
act service life of the operating fluid during the first year of operation.
The replacement interval may vary from the guide value specified by Pfeiffer Vacuum
depending on the thermal and chemical loads, and the accumulation of suspended par-
ticles and condensation in the operating fluid.
18
15
16
16.1
16
max.
min.
WARNING
Operating fluid may contain toxic substances from the pumped media!
Danger of poisoning from the emission of harmful substances from the operating fluid.
Wear suitable protective clothing and respirators.
Dispose of operating fluid according to the local regulations
Request safety data sheets for operating fluids and lubricants
from Pfeiffer Vacuum or download at www.pfeiffer-vacuum.com.
Dispose of operating fluid according to the local regulations.
