NieRuf EV01 - Removing Valves; Replacing Solenoid Coils

7 Maintenance and repairs
19/23 OPERATING INSTRUCTIONS FOR METAL SOLENOID-VALVES Index: 0
7.2.1 Removing valves
§ Make sure that:
- System is drained
- System is flushed
- System is de-pressurised
- System is cooled
- System is secured against reactivation
§ Remove valve from the pipeline.
§ If necessary, decontaminate valve.
- Empty spaces in the valve may still contain medium.
7.2.2 Replacing solenoid coils
3
4
5
2
1
1. Loosen bolt (1) and remove device plug (2) from the valve.
2. Unscrew nut (3) and remove washer (4).
4. Remove solenoid coil (5). Dispose of faulty solenoid coil.
5. Fit new solenoid coil (5).
6. Refit the individual parts in reverse order.
7. Connect armature to power supply (5.4 Connecting the armature to the power supply).
8. Conduct pressure check (5.5 Conducting the pressure check).