Ecolab Elados EMP II E60 - Diaphragm, Pump Head, and Stroke Adjustment

417101438_EMPII_E60.docx
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Rev. 11-02.14
11.2 Replacing the diaphragm and pump head
Fig. 11.6 Replacing the diaphragm and pump head
Pos:
Description
1
Cover plate
2
Metering head screws (4 x)
3
Pump head
4
Diaphragm
5
Supporting disk (not for 2.5 l/h)
6
Sandwich plate
7
Bellow
 Remove the cover plate (Pos. 1) on the
metering head,
 Loosen the metering head screws (Pos. 2).
 Remove the pump head (Pos. 3).
 Unscrew the diaphragm (Pos. 4), sandwich
plate (Pos. 6) and supporting disk (Pos. 5).
 Pull the bellows (Pos. 7) off the push rod.
 Insert the new bellows in the correct position
(see illustration).
 Insert the sandwich plate in the correct position (see illustration).
 Slide the supporting disk in the correct position (curved side in the direction of the
diaphragm) over the thread of the diaphragm.
 Insert the new diaphragm with the supporting disk.
WARNING
Only screw in the diaphragm by hand. (Do not use a tool!)
 Turn the sandwich plate clockwise until the diaphragm breakage outlet points downwards
 Affix the pump head (observe the flow direction, see Fig. 11.6)
 Screw in the pump head screws by hand
 Tighten the pump head screws alternately on the right and left sides
NOTE
Torque of the metering head screws = 3 - 4 Nm.
WARNING
Check the torque of the metering head screws after 24 hours!
 Fit the cover plate to the pump head.
11.3 Aligning the mechanical stroke adjustment
The metering pump is set in the factory at the rated pressure in accordance with the metering
curves. If the actual metering rate does not match the value shown on the % scale (for
example, after pulling out the adjusting button and reinserting it elsewhere), the basic setting
can be created as follows:
 Switch on the metering pump
 Set the button at 100 % and, with the pump in operation, rotate
the adjusting screw clockwise until tension becomes apparent.
 If no resistance is achieved, pull the button out at the "0" setting
and repeat process 2.
 Then pull the button out and reinsert the adjusting notch and
marking at the "0" setting on the scale and set the required
metering capacity.
Fig. 11.7 Maintenance: Aligning the mechanical stroke adjustment
NOTE
The pump capacity has to be measured in order to determine the metering capacity
accurately (see chapter 10.4 “Calibration“).