VACUUBRAND MZ 2C EX +IK+EK - Manual (Page 51)

page 51 of 75
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. manual-no.: 999128 / 29/04/2014
Inspection and replacement of the internal overpressure safety valve at the manifold:
(only MD 4C EX / MD 4C EX + AK + EK)
Inspecting the overpressure safety valve at the outlet:
➨ Unscrew the overpressure safety valve at the outlet of the
pump.
➨ Disassemble the overpressure safety valve and inspect
the parts for faultless condition, replace damaged parts.
➨ Reassemble the valve correctly.
➨ Screw the overpressure safety valve to the outlet of the
pump.
Inspecting the overpressure safety valve
MZ 2C EX MD 4C EX MV 10C EX
➨ Use an open-ended wrench (width 17 mm) to unscrew at
the pump heads the union nuts of the tubings which are
connected to the manifold (5x).
Elbow fitting (3x):
➨
Turn the fitting with an open-ended wrench (width 14 mm)
to detach the tubing from the pump head (1/4 of a turn at
maximum).
☞ Do not remove the elbow fitting from the pump head.
Straight fitting (2x):
➨
Pull the tubing off the fitting.
➨ Unscrew the two countersunk screws (A) at the cover
plate and remove cover plate together with distributor and
tubing.
MD 4C EX
(A)