Diaphragm Pumps UN035_I EX
Servicing
25
Fig. 14: Pump parts for double-head versions with stainless steel head
*not for .9 versions
1. For pumps UN035.1S_I EX and UN035.3S_I EX:
Pull the pneumatic head connection hose off one pump head.
2. For pumps UN035.2S_I EX:
On the pneumatic connection, loosen the hose clip on one
pump head and pull the hose off.
3. Mark the position of the head plate W and intermediate plate X
in relation of the housing A with a pencil.
4. Loosen the four allen screws Y and remove the head plate
head W, valve plate Z and intermediate plate X.
5. For all pumps except .9 versions: Unscrew the flathead screw
D, remove the retainer plate E and the diaphragm F.
6. 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.
7. For single-head pumps:
Loosen the four screws G and remove the cover plate H.
