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.: 999157 / 10/12/2009
page 22 of 31
View of the disassembled pump head parts
➨
To check valves use hex key to remove four socket head
screws from pump head and remove upper housing
(housing cover with housing cover insert), head cover and
valves.
☞
Position the pumping unit onto its left side with the pump
head at the top to facilitate maintenance.
☞
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 head cover from housing cover insert and check
valves. Note position of valves and remove.
☞
Replace valves if necessary.
☞
Check diaphragm for damage and replace if necessary.
☞
Use petroleum ether or industrial solvent to remove de-
posits. Do not inhale.
9
1
2
4
5
7
6
8
3
1: Housing
2: Connecting rod
3: Washer
4: Diaphragm support disc
5: Diaphragm
6: Diaphragm clamping disc with
square head screw
7: Head cover
8: Valves
9: Housing cover with housing
cover insert
