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.: 999164 / 19/05/2009
page 65 of 75
➨
To check the valves and the diaphragms use a hex key
to remove four socket-head screws from the pump head
and remove the upper part of the housing (housing cover
with housing cover insert) together with the head cover,
the valves and the O-rings.
☞
Never remove parts by using a spiky or sharp-edged tool
(e.g. screw driver), we recommend to use a rubber mallet
or compressed air (to be blown carefully into port).
➨
Remove the head cover carefully from the upper part of
the housing. Note the position of the valves and remove
them.
☞
Replace valves and/or O-rings if damaged.
☞
Use petroleum ether or industrial solvent to remove de-
posits. Do not inhale.
Outlet side
MV 10C VARIO-B / PC 3010 VARIO
MD 12C VARIO-B / PC 3012 VARIO
Inlet side
Pumps VARIO-B / Pumping units PC 301x VARIO
