1
2
3
4
5
6
NOTE!
Check that the deflector plate
⑤
is in perfect condition (Section 11.2 "Checking and replacing deflector").
5. Grease the diaphragm rod with Molykote Longterm W2 at the contact point with the housing and along
the diaphragm thread.
6. Push the support plate on to the threaded connector of the new diaphragm with the concave side facing
towards the diaphragm (see Fig. 4)
7. Screw the new diaphragm
②
clockwise into the diaphragm rod together with the support plate/spacer
③
until it firmly makes contact. The smooth side of the support plate presses against the end of the
diaphragm rod (see Fig. 5)
8. Now remove lock pin
⑧
(see Fig. 5)
9. Attach dosing head
①
. Tighten the screws crosswise, e.g. top left, bottom right, top right, bottom left. The
tightening torque for the dosing head screws is 125 Ncm (see Fig. 6)
IMPORTANT!
The diaphragm will not provide a tight seal if the tightening torque is too low.
The dosing head may be damaged if the tightening torque is too high.
10. After connecting the dosing lines, the dosing pump is started as described in "Start-up" (Section 9). If
the diaphragm wears down frequently, refer to "Troubleshooting" (Section 13) for a description of possible
causes.
Maintenance | Operation & Maintenance Instructions |
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