• Remove the two rubber parts at the valve in-
and outlet.
• Loosen the black tube clips GL-14 between
the pump heads.
• Turn the pump on its side.
• By means of the allen key in the pump
housing (for the position of the key, see Fig.
4.2) loosen the four screws at the glass/PEEK
head.
• Remove the metal cover and the pump head.
• Use the membrane key to loosen the
membrane by unscrewing it counterclock-
wise.
NOTE
Handle the diaphragm with care and make sure
it is not damaged when removing and mounting
it.
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