5
6
3
2
1
4
max.
min.
Fig. 5:
Filling with lubricant
1
Sight glass, bearing chamber
4
Sight glass, gear side
2
Lubricant filling plug
5
Lubricant drain plug
3
Lubricant filling plug
6
Lubricant drain plug
Procedure
1. Unscrew both lubricant filler screws.
2. Fill the lubricant on both sides according to the sight glass.
– Filling levels with the first filling: approx. 5 mm above the sight glass middle.
3. Seal the filler screws.
– Tightening torque:
50 Nm
4. Check the fill level during operation in the final vacuum.
– Fill level during operation: within the marking on the sight glass
Refilling the lubricant is carried out with the roots pump switched off and vented.
5.3 Filling with sealing oil
Overfilling the oiler
The lubricant expands when the roots pump heats up, which could cause lubricant
to leak if overfilled.
Oiler fill level with roots pump in cold state: to max. halfway.
The shaft feedthrough of the drive shaft is sealed with sealing oil-covered radial shaft seals. The corre-
sponding oiler on the seal casing cools and lubricates the radial shaft seal rings. The sealing oil type is
the same as the lubricant.
Installation
22/56
