ECOLAB EcoAdd Betriebsanleitung Seite 374

Maintenance
Pump head 30 l/h and 50 l/h
2
1
Fig. 94: Replacing the diaphragm and pump head
A Adhesive label: Tightening torque of metering head
screws
1 Metering head screws (4 pcs.)
2 Pump head
3 Suction valve
4 Pressure valve
5 Diaphragm
6a Intermediate plate without sensor
1.
Unscrew the suction and pressure valves (items 3 and 4).
2.
Loosen the metering head screws (item 1).
3.
Remove the pump head (item 2).
4.
Take out diaphragm (5) and intermediate plate (6a or 6b).
5.
Remove the protective diaphragm (7) from the diaphragm extension (8a or 8b).
6.
Remove diaphragm extension (8a or 8b) from the plunger.
7.
Reverse this procedure for re-installation.
MAN046939 Rev. 6-10.2021
6
5
4
7
A
3
9
8
6b Intermediate plate with sensor
7 Diaphragm rupture drain
8 Protective diaphragm
9a Diaphragm extension for intermediate plate without
sensor
9b Diaphragm extension for intermediate plate without
sensor
170