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Original document - Mi-503 EN Edition: 2022-06
5 Maintenance
5.1 Maintenance
Warning!
Before carrying out maintenance or repair work on the valve with actuator or installation
and removal of the valve from the pipeline, always disconnect the compressed air supply to
the actuator. Single action actuators may move to “open” or “closed” position without being
connected to the air system.
Warning!
When transporting and handling the actuator, observe the weight of the actuator or of the
whole unit. Never lift the valve by its positioner, limit switch, solenoid valve or piping. Place the
hoisting ropes securely according to lift instruction.
The actuator may injure persons if dropped.
Do not walk under suspended loads.
Regular maintenance is not necessary for the actuator type A. Assumed that the
service air is dry, oil free and its available with the required pressure.
Overhauling and repair work at the actuator may only be executed by Somas
Instrument AB or another service center who is authorised by Somas Instrument
AB. Repair work at the actuator may only be carried out by qualified personnel.
For the realisation of repairing work the instructions on the “additional
instructions for repair work” must be observed. Additional instructions as well as
corresponding repairing sets are available on request.
Note
Note down the details of the type plate before contacting the contact partners given in the
order confirmation in case of technical request.
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