WBV.PU.002.EN VX186QD V2.0
9.8 Adjusting of pump housing segments
The pump housing segments of the Vogelsang rotary lobe pump can be adjusted to reduce the top
clearance between the lobe and the pump housing segment. The top clearance must be at least as large as
one adjustment.
1. Remove the QD cover Chap. “Opening the QD cover”.
2. Undo the connectors and bolts on the pump housing segments.
3. Shift the spring pins of the upper and lower pump housing segments to both sides Fig. “Adjustment
of pump housing segments”.
4. Before installation of the pump housing segments, apply flange sealant, set a flat gasket in place and
coat that gasket with flange sealant as well.
5. Screw all bolts back onto the pump and the connectors Chap. “Pump connector”.
6. Install the QD cover Chap. “Closing the QD cover”.
Fig. 32: Adjustment of pump housing segments
Position of the spring pin
A In the condition of the pump on delivery
B In the 1st adjustment (reduction of the head gap by 0.9 mm)
C In the 2nd adjustment (reduction of the head gap by 1.8 mm)
To Next Page
