Vogelsang VX100Q - Closing the Cover Plate for QD;QD Marathon-Pumps

Rotary lobe pump
Operating instructions
VX100Q/VX136Q/VX186Q, VX136QD/VX186QD, VX136QDM2/VX186QDM2
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8.6 Closing the cover plate for QD/QD Marathon-pumps
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 Fig. "Open/Close the QD-cover plate"
1. Before assembly of the QD-cover (5) thoroughly clean the components and also oil them if necessary
 Fig. "Cleaning before the QD cover assembly" .
2. Pull O-ring (6) onto the QD cover.
3. Set QD cover in place.
4. Screw in loosely but do not tighten the two strain screws (3).
5. Tighten hex nuts (1) of the twelve hex head screws or threaded rods (note tightening torques).
Attention! Do not tilt the cover while doing this, but press it evenly "by hand"! Watch for
correct seating of the O-ring.
Tightening torques
Series VX136: M10 (10.9)  70 Nm
M10 (A4 70)  40 Nm
Series VX186: M12 (12.9)  140 Nm
M12 (A4 70 - stainless steel)  60 Nm
6. Tighten strain screws (3)  chap. "Tightening torques of the hex socket head screws or strain screws
for installation of the pressure disk".
7. Install the hex head screw plugs (2).
8. Pressurise the buffer chamber.
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A
Clean thoroughly and oil
B
Clean thoroughly
Fig.
19
: Cleaning before QD cover assembly
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