ProMinent Makro/ 5 Operating Instructions Manual page 39

1
2
3
4
P_MAK_0045_SW
Fig. 19: Cross-section through the liquid end
1 Dosing head
2 Diaphragm
3 Reinforce plate
4 Screw
5 Protective cover
6 Backplate
7 Bellows
8 Slide rod
9 Tube nozzle
7. Undo the screws (4) on the reinforce plate.
8. Remove the dosing head (1) with the screws from the back‐
plate (6).
While doing this, do not damage the black bellows (7)
on the slide rod.
10. Remove the protective cover (5) from the backplate (6).
11. Unscrew the diaphragm (2) on the grooves of its shaft from
the slide rod (8) and remove. Use a sickle spanner inserted
through the slot in the backplate (6).
12. Clean the sealing surfaces.
13. Check the state of the bellows (7).
14. Screw the new diaphragm (5) up to the stop on the slide rod
(8).
ð This must be done correctly to ensure the pump meters
accurately.
15. Place the dosing head (1) and the reinforce plate (3) onto the
backplate (6).
16. Position the screws
Repairs
5
6
7
8
9
39