65637bd9

6.3.2.11.3. Potentiometer of a butterfly valve

Removal

PERFORMANCE ORDER
1. The potentiometer of a butterfly valve (it is specified by an arrow) is installed on the right side of the case of a butterfly valve. Before its removal, disconnect a wire of the negative plug of the accumulator.
2. Disconnect the socket of connection of a potentiometer of a butterfly valve.
3. By means of white paint or a marker make marks in the case of a butterfly valve and a potentiometer.
4. Turn off two fixing screws and remove a potentiometer.
5. 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.
6. Establish a fixing plate, then, combine the marks made before removal and twirl fixing screws a little. Adjust a potentiometer as follows.
7. 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.
8. When the potentiometer is correctly established, reliably tighten fixing screws, and connect the connection socket.
9. Connect a wire of the negative plug of the accumulator.