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Series 655
MAINTENANCE
979645EA
Edition 23.09.2019
89/112
Description
Required tool
22. Lift up the gate with the
maintenance tool until a
position is reached on
which the gate can be
moved in
Maintenance-Tool
Take care to valve
body and sealing surface
23. Move the gate into
valve body by hand
24. Dismount the protection
cover at valve body.
Protection cover
25. If necessary replace the
bonnet seal
26. Install the new bonnet
seal (without grease) in
same manner as
described in step 20.
For new bonnet O-
ring, refer to chapter:
Spare parts.
O-ring removal tool
27. Clean the valve sealing
surface.
•
Isopropyl alcohol
•
Clean room wiper