AUMA Part-turn gearboxes GS 50.3 - 250.3, primary reduction gearings VZ 2.3 - 4.3_GZ 160.3 - 250.3 - Manual (Page 16)

10. Changing the swing
angle The adjustment is made in end position OPEN.
Optional for size GS 50.3 – GS 125.3
Standard for size GS 160.3 – GS 250.3
Accuracy:
GS 50.3 – GS 125.3:
0.6°
GS 160.3 – GS 250.3: 0.11° to 0.14°
10.1 Changing the swing angle for sizes GS 50.3 – GS 125.3 (option) .
Unscrew protective cap (16) at limit stop housing (10) (figure H).
.
Remove roll pin (020) with appropriate tool (available from AUMA).
Increasing the swing angle
.
Turn end stop nut (15) back counterclockwise.
When turning back the end stop nut (015), make sure the roll pin
(020) can still be tapped in within the oblong hole.
.
Move valve into the desired end position.
.
Turn end stop nut (15) clockwise until it is tight up to the stop nut (7).
Reducing the swing angle
.
Move valve into the desired end position.
.
Turn end stop nut (15) clockwise until it is tight up to the stop nut (7).
The end stop nut (15) must entirely cover the roll pin (020).
.
Tap in roll pin (020) with tool. If slot in end stop nut (15) does not align with the
hole in the worm shaft, turn end stop nut (15) slightly counterclockwise until it is
in alignment, then tap in roll pin.
.
Check O-ring (08) and replace, if damaged.
.
Replace protective cap (16).
.
If gearbox is mounted to a multi-turn actuator, set limit switching again for the
end position OPEN according to the operation instructions SA/SAR. Allow for
overrun.
16
Worm gearboxes GS 50.3 – GS 250.3 Operation instructions
020 15 10 7 16 08
Figure H: End stop up to GS 125.3
03/04 082/083
058
10 7 056 054
055 34 15 16
Figure J: End stop from GS 160.3