
MAINTENANCE
Series 620
18/26
Edition 2020-01-08
1003735EB.DOCX
Description
Required tool
9. Clean the O-ring grooves
Clean room
wiper soaked
with isopropyl
alcohol
10. Install the new bonnet and plate
O-rings
For new O-rings refer to
chapter: «Spare parts».
11. Assemble actuator unit with bellows
into valve body in reverse order.
12. Fasten the bonnet screws with
14.5 Nm (crosswise)
Allen torque
wrench No. 6
13. Connect valve cable
14. Switch ON power to the valve
15. Switch ON PFO