Replacing The Diaphragm - vacuubrand MZ 2C NT+2AK Instructions For Use Manual

O

Replacing the diaphragm

H
J
O
page 60 of 80
Detach the coupling of the connection tube (V)
U
V
to the other side of the pump at the valve head
(O).
Pump at pump support:
Detach the coupling of the connection tube (V)
to the other side of the pump as well as the
hose connection to the inlet/outlet of the vacu-
um system at the valve head (O).
➨ Open the hose clip (U) with a slotted screw-
driver.
➨ Pull the tubing off the hose connector.
Opening the hose clip:
➨ Apply slotted screwdriver as shown and
turn.
➨ Disassemble head covers (J) to check the
diaphragm (F).
➨ Unscrew four (pump with one/two heads) or
eight (pump with four heads) Allen screws
(H) with a 5mm wide Allen key. Remove
both head covers (J) (pumps with one/two
heads: only one head cover) together with
valve heads (O) and connections.
+ It is not necessary to disassemble the valve
heads (O), the connection fasteners (Q), or
the hose connection between the adjacent
head covers (pumps with four heads).