6.3.2.12.3. Potentiometer of a butterfly valve
Arrangement of a potentiometer of a butterfly valve of the Phase II model
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The arrangement of a potentiometer of a butterfly valve is specified by an arrow. |
The potentiometer of a butterfly valve is installed on the back side of the case of a butterfly valve.
Before its removal, disconnect a wire of the negative plug of the accumulator.
Removal and installation
| PERFORMANCE ORDER |
| 1. Disconnect the socket of connection of a potentiometer of a butterfly valve. |
| 2. By means of white paint or a marker make marks in the case of a butterfly valve and a potentiometer. |
| 3. Turn off two fixing screws and remove a potentiometer. |
| 4. At installation, install a potentiometer on the case of a butterfly valve so that its lever was correctly installed on the lever of an axis of a butterfly valve. |
| 5. Combine the marks made before removal and twirl fixing screws a little. Adjust a potentiometer as follows. |
| 6. By means of the tester established on measurement of resistance check that resistance of a potentiometer was such as it is specified in the section of technical characteristics (see subsection 6.3.2.1). If it is necessary, turn off fixing screws and turn a potentiometer that its resistance was such as it is specified in the section of technical characteristics. |
| 7. When the potentiometer is correctly established, reliably tighten fixing screws, and connect the connection socket. |
| 8. Connect a wire of the negative plug of the accumulator. |
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