22. Screw the diaphragm rupture indicator into the dosing head.
CAUTION!
The diaphragm rupture warning system can
fail.
– Make sure that the safety plunger (1) and
its pin can move freely.
23. Start the pump and tighten the screws crosswise at a 100%
stroke.
Tightening torque
30 Nm
24. Position the protective cover (5) on the turret (8) and screw in
the safety screw.
–
Check the tightening torque of the screws after
24-hour operation.
–
With PP dosing heads, check the tightening
torque again after three months.
10.2 Repairing the diaphragm rupture sensor
WARNING!
Feed chemical warning
After a diaphragm rupture, additional feed chem‐
ical will be present in the diaphragm rupture sensor
and the feed channel in the dosing head.
– Protect yourself from the feed chemical if using
hazardous or unknown feed chemicals.
Observe the material safety data sheet.
Check diaphragm rupture sensor
30 V version
Repairs
61
