VACUUBRAND MZ 2C EX +IK+EK - Manual (Page 40)

page 40 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
➨ Screw in four socket head screws fixing housing cover
crosswise (e. g. in the sequence 1,2,3,4) first slightly, then
tighten.
☞ Do not tighten until head cover is in contact with housing,
torque 12 Nm.
Attention: Ensure that the diaphragm clamping disc
never hits the head cover! In case of loud knocking
switch off the pump immediately.
Inspect pump or replace diaphragms and valves at the
other pump heads analogue.
➨ Position pump in a way so that the disassembled pump
head is above, support if necessary.
➨ By turning eccentric bushing (front of connecting rod),
bring connecting rod into a position in which diaphragm is
in contact with housing and centred with respect to bore.
Reassemble in reverse order.
➨
Install head cover with O-ring, valves and housing cover
with housing cover insert.
☞ Make sure that the valves are correctly seated: Valves at
the outlet with round centred opening under valve, valves
at the inlet with kidney-shaped opening beside valve.
☞ Ensure that the diaphragm is positioned centrally so that it
will become clamped uniformly between housing and head
cover.
➨ Use a face wrench with torque indicator to assemble safe-
ty diaphragm support disc under the safety diaphragm with
rod.
☞ Make sure that the square head screw of the diaphragm
clamping disc is correctly seated in the guide hole of the
diaphragm support discs.
Optimum torque for the diaphragm support disc: 6 Nm.
☞
The optimum torque is achieved if the pointer in the handle
of the VACUUBRAND face wrench shows to the longer
marking line (see above).
☞ Ensure conductance of the connection.
☞ Attention: Absolutely assemble all
washers correct if available (between
safety diaphragm support disc and
rod). Never assemble more washers!
1
4
3
2
Assembling the pump head