Vogelsang VX136Q - Closing the Q Cover; Adjusting of Pump Housing Segments; Fig. 30: Adjustment of Pump Housing Segments

Repair
WBV.PU.002.EN VX136Q V2.0
65
9.7 Closing the Q cover
 Fig. "Opening/closing the Q cover"
1. Thoroughly clean the contact surfaces before installing the Q cover (2).
2. Pull the O-ring (3) onto the Q cover.
3. Set the Q cover in place.
4. Install and tighten the hexagon nuts (1) again.
Attention! Do not tilt the Q cover while doing this, but press it evenly by hand (no tools).
Make sure the O-ring is seated correctly.
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 rotary lobe and the pump housing segment. The top clearance must be at least as
large as one adjustment.
1. Remove the Q cover  Chapter "Opening the Q 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  Chapter "Pump connector".
6. Install the Q cover  Chapter "Closing the Q cover".
Fig. 30: 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 0.7 mm)
C In the 2nd adjustment (reduction of the head gap by 1.4 mm)