Diaphragm Pumps UN035_I EX
Servicing
21
Fig. 12: Pump parts for double-head versions with aluminium head
*not for .9 versions
1. For double-head pumps:
At one pump head open the union nut of pneumatic head
connection and pull off the tube.
2. Mark the position of the diaphragm head C in relation of the
housing A with a pencil.
3. Loosen the four allen screws B and remove the diaphragm
head C.
4. For all pumps except .9 versions: Unscrew the flathead screw
D, remove the retainer plate E and the diaphragm F.
5. For pumps UN035_ _.9I EX: To undo the retainer plate E use
the wrench for retainer plate to turn it counter-clockwise; re-
move retainer plate and diaphragm F.
6. For single-head pumps:
