Repair The Diaphragm Rupture Sensor; Version - ProMinent MAKRO TZ Operating Instructions Manual

Repairs
11.2

Repair the diaphragm rupture sensor

11.2.1 30 V version
30 V version
40
14. Unscrew the diaphragm (2) from the slide rod (6) and detach.
15. Clean the sealing surfaces.
16. Smear the thread of the threaded connection of the diaphragm slide
rod with a little screw locking paste.
17. Screw the new diaphragm (2) up to the stop on the slide rod (8).
ð This must be done correctly to ensure the pump meters accu‐
rately.
18. Place the dosing head (1), the reinforce plate (3) and the backplate
(9) onto the turret(8).
19. Position the screws
20. Push the safety piston (1) with the spring (2) into the channel of the
dosing head.
21. Screw the bushing into the dosing head (O-ring (4)!) and tighten by
hand.
22. Screw the diaphragm rupture signaller into the dosing head.
CAUTION!
Failure of the diaphragm rupture signalling.
– Ensure the safety piston (1) and its pin can move
freely.
23. Start the pump and tighten the screws crosswise at a 100% stroke.
Tightening torque
24. Position the protective cover (5) on the turret (8) and screw in the
safety screws.
– Check the tightening torque of the screws after 24-hours'
operation.
With PP dosing heads, recheck the tightening torque
–
again after three months.
Check diaphragm rupture sensor
30 Nm