14 ExTensor
5. Initial operation
Work on open live drives, e.g. setting the end positions, may only be carried out if the
occurrence of an explosive atmosphere can be ruled out for the period of work.
The actuator without the drive cover may only be operated for a short period of time for
essential adjustment and commissioning processes.
Dangerous voltage: Electric shock possible!
• The drive may only be commissioned by qualied personnel!
• De-energize before opening the actuator.
• For electrical installation and commissioning, the applicable regulations have to be
observed.
5.1 Opening the actuator
Do not disconnect under voltage!
Before removing the drive cover, the drive must be switched off from the power supply.
Installation and commissioning only by qualied specialists in accordance with the
operating instructions.
After loosening and removing the cover screws, carefully lift the drive cover off the lower
part of the housing. Do not tilt or wobble. This can lead to irreparable damage to the
ameproof gap.
Only the screws installed on the drive may be used to mount the cover. If lost, screws of the same standard, dimensions and
strength must be used.
Screw type: ISO4762 - M8x40 - A2-70
The drive cover is screwed to the lower part of the housing with 4 screws (M8x40). The drive cover and housing base are assembled
with each other via a narrow, cylindrical t to form the "ash-proof gap".
Care must therefore be taken when lifting the drive cover so that the components do not tilt.
When the cover hood is lifted, a vacuum can develop in the drive, which makes it difcult
to lift the hood. This can be avoided by loosening a cable/line entry or blind plug so that air
can ow through it.
DANGER! The lead-in must be professionally closed again before commissioning or for
further storage.
Danger! Pressure proof encapsulation
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