Related information
7.5 Cleaning or replacing the dosing diaphragm
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Observe section Safety instructions for maintaining the dosing diaphragm or the valves
•
Observe section Preparing for maintenance of the dosing diaphragm or the valves
1. Unscrew the dosing head screws.
2. Remove the dosing head.
3. Turn the motor fan blades until the diaphragm reaches the front dead centre.
The diaphragm will detach itself from the diaphragm flange.
4. Turn the diaphragm counter-clockwise to unscrew the diaphragm from the tappet.
5. Clean all parts and check that the parts are intact.
6. Replace faulty parts with new ones.
7. Screw in the diaphragm completely. Then turn it back until the holes in the diaphragm and
the flange are aligned.
8. Turn the motor fan blades until the diaphragm reaches the back dead centre.
The diaphragm is moved towards the diaphragm flange.
9. Refit the dosing head.
10. Cross-tighten the dosing head screws with the correct torque.
11. After 6-10 operating hours or two days, retighten the screws with the correct torque.
Related information
• 7.2 Safety instructions for maintaining the dosing diaphragm or the valves
• 7.3 Preparing for maintenance of the dosing diaphragm or the valves
• 9.3.1 Torque values
7.6 Cleaning or replacing the diaphragm of the integral relief valve
•
Observe section Safety instructions for maintaining the dosing diaphragm or the valves
•
Observe section Preparing for maintenance of the dosing diaphragm or the valves
•
Make sure a return flow or overpressure cannot occur.
1. Unscrew the four screws of the integral relief valve.
2. Remove the top part of the integral relief valve.
3. Remove the diaphragm.
4. Clean all parts and check that the parts are intact.
5. Replace faulty parts with new ones.
6. Insert the diaphragm.
7. Refit the top part of the integral relief valve.
8. Cross-tighten the screws with the correct torque.
9. After approximately 48 operating hours, retighten the screws with the correct torque.
Related information
• 7.2 Safety instructions for maintaining the dosing diaphragm or the valves
• 7.3 Preparing for maintenance of the dosing diaphragm or the valves
• 9.3.1 Torque values
DMX 221 | |
36
