AUMA Part-turn gearboxes GS 50.3 - 250.3, primary reduction gearings VZ 2.3 - 4.3_GZ 160.3 - 250.3 - Manual (Page 3)

1. Safety instructions
1.1 Range of application AUMA worm gearboxes GS 50.3 – GS 250.3 are used for the operation of valves
(e.g. butterfly valves and ball valves).
They are designed for manual operation as well as motor operation in conjunction
with electric actuators.
For other applications, please consult us. The manufacturer is not liable for any
possible damage resulting from use in other than the designated applications.
Such risk lies entirely with the user.
Observance of these operation instructions is considered as part of the gearboxes’
designated use.
1.2 Maintenance The maintenance instructions (refer to page 19) must be observed, otherwise a
safe operation of the worm gearbox is no longer guaranteed.
1.3 Warnings and notes Non-observance of the warnings and notes may lead to serious injuries or
damage. Qualified personnel must be thoroughly familiar with all warnings and
notes in these operation instructions.
Correct transport, proper storage, mounting and installation, as well as careful
commissioning are essential to ensure a trouble-free and safe operation.
The following references draw special attention to safety-relevant procedures in
these operation instructions. Each is marked by the appropriate pictograph.
This pictograph means: Note!
“Note” marks activities or procedures which have major influence on the correct
operation. Non-observance of these notes may lead to consequential damage.
This pictograph means: Warning!
“Warning” marks activities or procedures which, if not carried out correctly, can
affect the safety of persons or material.
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Operation instructions Worm gearboxes GS 50.3 – GS 250.3