Heidolph ROTAVAC vario control - Manual (Page 25)

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.: 999223 / 08/07/2009
page 25 of 34
➨ Take the head covers carefully off the housing to check the
valves.
Note the position of the valves and remove them.
☞
Replace valves if damaged.
Use petroleum ether or industrial solvent to remove de-
posits. Do not inhale.
➨ Check the diaphragms for damage and replace if neces-
sary.
View of the disassembled pump head parts
1: housing cover
2: valve
3: head cover
4: diaphragm clamping disc with
connecting screw
5: diaphragm
6: diaphragm support disc
7: washers
8: rod
9: housing
10: bearing plate
6
1
7
3
4
5
10
8
2
9