Emerson Bettis BHH Series Installation, Operation And Maintenance Manual page 35

Installation, Operation and Maintenance Manual
MAN-02-05-62-0742-EN Rev. 0
1. Prepare the actuator as stated in "Preparations
before Dismounting" on Section 10.1.1.
3. Dismount the bottom cover. Use special tools or
2 pins fitting the holes in the bottom part. Turn
counter-clockwise to loosen the bottom part.
5. The spline shaft is dismounted by knocking the
position shaft with a nylon hammer. The spline
shaft and the housing are to be marked.
7. For BHH 1000 to 32000 there might be a spline
connection to be removed as well. Otherwise
remove screws or Seeger ring (locking ring).
9. Remove the top part to be able to replace the O-ring. 10. Dismount the piston.
BHH Dismounting
Dismounting BHH
2. Dismount the yoke.
4. The spline shaft including the thrust gage is
dismounted.
6. The spline shaft is dismounted.
8. The top part is dismounted. Use special tools or 2
pins fitting the holes in the top part. Turn clockwise to
loosen the top part.
New spline
connection
Seeger ring
The piston can be dismounted with special tools or
by knocking the bottom with a cylindrical pipe.
Section 10: BHH Dismounting
December 2019
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