ProMinent alpha ALPc 0230, Руководство по эксплуатации, Страница: 35 / 52

CAUTION!
There should be no gap visible
between the diaphragm and the
contact surface of the threaded
rod.
5. Screw the hexagonal nut (17) onto the
threaded rod (16) until it will go no fur‐
ther.
6. Insert the diaphragm with the threaded
rod into the backplate (14) and screw
the entire unit onto the connecting rod
(18) until it will go no further. (The stroke
length should still be 0 here.)
7. Turn the diaphragm back until the 4
holes in the diaphragm and backplate
are precisely aligned.
8. Ensure that the suction connector is
pointing downwards and then using the
screws (6a) to place it onto the dia‐
phragm and the backplate - the suction
connector should be pointing down‐
wards in the pump's subsequent fitting
position.
9. Gently tighten the screws (6a) and then
tighten cross-wise.
Concluding the work
1. With PP types with bleed valve: Allow
the cover of the liquid end to rest in the
dosing head, then press the grip on the
bleed valve into the dosing head.
2. Turn the hexagonal nut (17) against the
connecting rod (18) and gently tighten.
3. Set the stroke length required and lock
the latched slide (9) into place.
4. Replace the cover (1) and secure with
the safety screw.
5. Bleed the pump - refer to the "Start up"
chapter.
CAUTION!
Leakage possible
–
Check the tightening torque of the
screws after 24 hours of operation!
– With PP and PV dosing heads,
check the tightening torque again
after three months!
Repairs
35