This chapter supplies basic information and instructions which should be considered
in addition to the operation instructions of the multi-turn actuator.
Screws to actuator
Screws are included in the scope of delivery of the gearbox for mounting AUMA
multi-turn actuators. When mounting other actuators, the screws might be either too
long or too short (insufficient reach of screws).
Risk of actuator falling off in case inappropriate screws used should shear.
Risk of death or serious injury!
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Check length of screws.
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Only use screws with strength class specified herein.
The reach of screws must be sufficient for the internal threads to ensure the
supporting strength of the device and to accept the lateral forces due to the applied
torque.
Screws which are too long could make contact with the housing parts, presenting
the risk that the device performs a radial shift with respect to the gearbox. This can
lead to shearing of the screws.
4.3.1.
Mounting positions Multi-turn actuators with part-turn gearboxes
Mounting positions A – D for multi-turn actuators with part-turn gearboxes
B
A
D
C
The mounting positions are not available for all sizes/reduction ratios. Risk of
crushing due to insufficient distance between handwheel ball handle and the
housing for certain sizes.
14
GS 315 – GS 500
Assembly
GZ 30.1 – GZ 40.1
