Auma Part-turn gearboxes GS 50.3 - 250.3, primary reduc Manuel d'utilisateur télécharger pdf (Page 14)

Limit seating in end position CLOSED

Turn back the valve from the end position by an amount equal to the overrun.

Set limit switching according to the operation instructions SA/SAR.

Check torque switching for end position CLOSED according to the operation

instructions SA/SAR, and, if necessary, set to the required value.

Torque seating in end position CLOSED

Turn handwheel counterclockwise by approx. 4 – 6 turns.

Set limit switching for the end position CLOSED according to the operation

instructions SA/SAR (for actuator indication).

Check torque switching for end position CLOSED or set to the required value.

Setting end position OPEN The end stop need not be set since the required swing angle has been set in the

factory.

Move gearbox to the end stop in position OPEN.

The last part of the travel has to be made manually.

To turn the valve back manually from the end position by an amount equal to the

overrun, proceed as follows:

For actuators mounted directly:

by approx. 4 to 6 turns at the handwheel.

With mounted primary reduction gearing VZ/GZ:

by approx. 10 to 15 turns at the handwheel, according to the reduction ratio of

the primary reduction gearing.

Set limit switching in actuator for the end position OPEN according to the

operation instructions SA/SAR.

If the swing angle does not match, refer to section 10.

9.2 Worm gearboxes on ball valves

In case end stops require adjustment, set end position OPEN first.

If the exact end position of the valve cannot be seen through a

position marking at the valve shaft, the setting may have to be

done with the valve removed.

Determine overrun of the actuator for both directions, i. e. how much does the valve

move after the motor has been switched off?

Worm gearboxes GS 50.3 – GS 250.3 Operation instructions

03/04

Figure F: End stop up to GS 125.3

03/04

Figure G: End stop from GS 160.3

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 31 32

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Auma Part-turn gearboxes GS 50.3 - 250.3, primary reduc Manuel d'utilisateur Page 14