MAINTENANCE
Series 010
16/25
Edition 2014-07-31
761035EA
1. Close the valve.
2. Vent chambers on either side to atmospheric pressure.
3. Remove bonnet screws (64); see «Figure 6-1» on page 15.
4. Withdraw actuator / mechanism unit carefully from body; see «Figure 6-1» on page 15.
Do not touch the body wall.
5. Clean gate seal (33) and replace bonnet seal (61); see «Figure 6-1» on page 15.
6. Clean seat and bonnet seal surface of the valve body (1); see «Figure 6-1» on page 15,
with cleanroom wiper.
7. Insert actuator / mechanism unit into body without touching the body wall.
8. Mount screws (64) according to «Figure 6-1» on page 15.
9. Tighten screws (64) in crosswise order (from inside to outside) with a torque of
10 Nm / 7.4 lbf · ft.
Valve is ready for use.
