
www.gemu-group.com
22 / 32
GEMÜ GDR/GSR
11 Changing the rotational direction
LF version
Assembly of the shaft:
TOP
TO
P
1
CLOSE PISTON
OPEN PISTON
OCTI-CAM
SHAFT
TOP VIEW
(Diagonal)
(Parallel)
SHAFT
CONNECTION
13. Install the octi-cam in the correct position.
Assembly of the pistons:
TO
P
TOP
90°
40° - 45°
5°
A
A
2
3
4
5
14. Install the shaft square socket connection on a properly secured coupling.
15. Make sure that the octi-cam is in the correct position (figure 3). The groove on the shaft must be parallel to the housing.
16. To install the rotational direction for the LF version (anticlockwise closing), turn the housing anticlockwise by approx. 40–
45° when viewed from above (figure 4).
17. Simultaneously insert the two pistons into the housing and press them in until the pistons are engaged. Then turn the hous-
ing clockwise when viewed from above until the stroke is completed.
18. In the case of two fully adjusted pistons, make sure that the rotation achieved in relation to the housing axis is 5° over 0° or
0.5° over 0°, depending on the actuator type, and that dimension A on both sides is the same as in figure 5.