Installation, Operating & Maintenance Instructions
Series 244, DN 10 - 50 (I.D.
⅝" - 2")
Series 245, DN 16 - 50 (I.D. 1" - 2")
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
258343EE
2013-09-16
11/14
5.1.3 Replacement of feedthrough O-ring (15/3)
Dismount "actuator/gate assembly" (see 5.1.1)
Dismount position indicator or cover (42)
Compress insert
– between plate (15/2) and guiding bushing (26/11) – in a vice
Close vice and press plate (15/2) against the guiding bushing (26/11) (see drawing) until the circlip
(26/10) can be removed from the shaft
Attention:
Loaded spring!
Carefully
open vice and remove relaxed "insert".
Remove the parts 26/11, 26/5, 26/4 and 15/1 from plate (15/2) by axially disperse the parts
Pick feedthrough O-ring (15/3) with a needle and pull it out of groove
Attention:
Do not damage the sealing surface!
Clean all parts and slightly lubricate all O-rings, guiding and sliding surfaces with VAT vacuum grease
(see spare parts)
Assembly:
- Put O-ring (15/3) into groove of feedthrough end piece (15/1)
- Assemble 26/4, 26/5, 26/11
- Clamp actuator
– between plate (15/2) and guiding bushing (26/11) – into a vice, close vice and press
plate (15/2) against guiding the bushing (26/11) until the circlip (26/10) can be put into the groove
Insert circlip 26/10 so that it snaps into groove
Carefully
open vice and simultaneously check whether the circlip is being pulled into the dent of the
piston
