VAT 651 Series - Page 77

Series 651 MAINTENANCE
605451EC Edition 2014-07-10 77/
99
Description Required tool
Vacuum grease
17. Clean the valve body.
• VAT cleaning tool
• Isopropyl alcohol
18. Reassembly the valve in reverse
order, step 9…3.
19. Clean the valve sealing surface.
• Isopropyl alcohol
• Clean room wiper
20. Clean the bonnet.
• VAT cleaning tool
• Isopropyl alcohol
21. Clean the valve bonnet o-ring. If
necessary, replace the bonnet
o-ring.
Clean room wiper
22. Close the valve bonnet. Tightening
the bonnet screws with 6 Nm.
Allen wrench 5 mm
Apply grease deposit
on this side