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Edition: 2022-06 Original document - Mi-503 EN
4.3 Disassembly of the pneumatic actuator
Warning!
Before carrying out maintenance or repair work, installation and removal of an actuator from a
valve in the pipeline, always depressurise the valve in the pipeline, isolate the valve and remove
the medium.
The pressurised medium may lead to injuries to personnel.
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.
1 Puller 3 Screw 5 Bolt
2 Driver 4 Clamping ring bolts 6 Bracket
Fig.4-5 Disassembly of the actuator (schematic diagram)
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