Auma Part-turn gearboxes GS 50.3 - 250.3, primary reduc Manuel d'utilisateur télécharger pdf (Page 12)

8. Setting the end stops for manual operation

If worm gearboxes GS are supplied on a valve the end stops are

already set by the valve manufacturer.

8.1 Worm gearboxes on butterfly valves

Setting end position CLOSED

Remove all bolts (03) at limit stop housing (figures D, E).

Turn valve manually to end position CLOSED.

In case limit stop housing (10) has not yet rotated, turn it clockwise up to the

stop.

If the holes of limit stop housing (10) do not align with the threads of the housing

(1), take off the limit stop housing (10) and replace it in the required position.

Fasten bolts (03) with lock washers (04).

Fasten bolts crosswise with a torque according to table 3.

If the position of the pointer cover does not correspond to the symbol CLOSED,

slightly loosen the screws of the pointer cover. Turn the pointer cover to the

CLOSED symbol and fasten the screws again.

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

factory.

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

Worm gearboxes GS 50.3 – GS 250.3 Operation instructions

Gearbox End stops fas-

tened with

bolts (03)

Material Protective cap

fastened with

bolts (054)

Material Fastening torque

[Nm]

GS 50.3

M 8 A2-80 24

GS 63.3

M 8 A2-80 24

GS 80.3

M 8 A2-80 24

GS 100.3

M 12 A2-80 82

GS 125.3

M 12 A2-80 82

GS 160.3

M 10 A2-80 M 6 A2-80 48

GS 200.3

M 12 A2-80 M 6 A2-80 82

GS 250.3

M 16 A2-80 M 6 A2-80 200

Conversion factor: 1 Nm corresponds to 0.74 ft lbs.

Table 3

03/04

Figure D: End stop up to GS 125.3

03/04

Figure E: End stop from GS 160.3

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 31 32

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Auma Part-turn gearboxes GS 50.3 - 250.3, primary reduc Manuel d'utilisateur Page 12

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