VAT 612 Series Installation, Operating, & Maintenance Instructions page 72

7. Remove mechanical unit and clean
shaft.
8. Remove o-rings.
9. Clean shaft feedthrough and valve
body.
10. Lubricate seal contact surface of
valve body with a slight film of
vacuum grease (0.025 ml).
11. Lubricate each o-ring with a slight
film of vacuum grease (0.0125 ml).
12. Lubricate seal contact surface of
shaft with a slight film of vacuum
grease (0.0125 ml).
13. Slide both o-rings onto shaft till the
end.
14. Deposit 0.0375 ml vacuum grease
between the o-rings
15. Clean shaft from vacuum grease.
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel +41 81 771 61 61 Fax +41 81 771 48 30 CH@vatvalve.com www.vatvalve.com
Installation, Operating & Maintenance Instructions
Series 612 DN 63-250 (I.D. 2.5" - 10"), CC-Link
Description
Required tool
Lint and dust
free cloth
soaked with
isopropyl
alcohol
Vacuum
grease
Vacuum
grease
289856EA
72/85
2011-07-06