6.1.6. Replacement and adjustment of a cable of the drive of a butterfly valve

Replacement

The cable of the drive of a butterfly valve is very sensitive to excesses. Therefore at installation it is necessary to handle with it with care. The small break can lead later to destruction of a cable during the movement.


 PERFORMANCE ORDER

  1. Take out a cable of the drive of a butterfly valve (1) with rubber consolidation (2) from a support (3) up.

Components of the drive of a butterfly valve
1 — the Cable of the drive of a butterfly valve
2 — Consolidation
3 — the Support
4 — the Stopper
5 — the Lock bracket


The stopper (4) cables of the drive of a butterfly valve is not removed.

  1. The cable of the drive of a butterfly valve is fixed on draft of the drive by means of a spherical support. Wring out a lock bracket (5) from a spherical support, incline it up and take out lock of a spherical support (address an illustration).
  2. Disconnect the screw-driver a spherical support from draft.
  3. Not up to the end insert a lock bracket into a spherical support.
  4. Establish a spherical support. Completely insert a lock bracket and bend it on a spherical support.
  5. Insert a cable of the drive of a butterfly valve with rubber consolidation.
  6. Check adjustment of a cable of the drive of a butterfly valve.

Adjustment

 PERFORMANCE ORDER

  1. Ask the assistant to squeeze out the accelerator pedal completely.
  2. Adjust a cable of the drive of a butterfly valve by shift of a clamp on a support so that on the lever of a butterfly valve the provision of full gas was reached.
  3. Press a hand the lever of the drive of a butterfly valve against the stop of full gas. At the same time the side play has to be no more than 1 mm.