Installation, Operating & Maintenance Instructions
Series 650, DN 100 – 250 (I.D. 4" - 10")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel ++41 81 771 61 61 Fax ++41 81 771 48 30 Email reception@vat.ch www.vatvalve.com
258550EE
2007-05-11
44/51
D e s c r i p t i o n Required tool
17. Disconnect 24VDC power. Wait for
60s, then disconnect cable and
compressed air from valve actuator.
18. Unfasten all 4 controller screws and
lift controller carefully from actuator.
Unfasten the 4 screws of the shift
adaptor plat and remove it carefully.
Allen Wrench
5 mm
19. Unfasten all 3 actuator screws and
remove actuator.
Allen Wrench
5 mm
20. Remove seals from actuator
feedthrough carefully with a soft tool.
21. Clean actuator feedthrough with
alcohol.
22. Lubricate each o-ring groove with
0.1 ml vacuum grease. Pay attention
that grease is distributed constantly
over the whole circumference.
23. Clean or replace seals if necessary.
Lubricate each o-ring with 0.05 ml
vacuum grease.
24. Install o-rings.
25. Deposit 0.1 ml vacuum grease on
each o-ring. Pay attention that
grease is distributed constantly over
the whole circumference.
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