Emerson Bettis BHH Series Installation, Operation And Maintenance Manual page 39

Installation, Operation and Maintenance Manual
MAN-02-05-62-0742-EN Rev. 0
1. Mount according to disassembly marks.
Piston is mounted and turned until the helical
spline is in mesh. The piston is turned clockwise.
3. Piston in bottom position.
1. The serrated lock washer is mounted in the
positioning shaft (can possibly be fixated with a drop
of Loctite). Note: Always use a new lock washer.
3. Screw is wetted with Loctite 542 and mounted.
5. The shaft cam is lubricated with a thin layer of grease.
BHH Re-Mounting
Mounting of Piston in Actuator Housing
2. Mounting tools are used for pressing home the piston.
The piston can possibly be knocked in with a cylindrical
pipe, but the helical spline must then be in mesh
before knocking.
4. The top part is mounted by turning counter clockwise
(tightening torque stated on the assembly drawing).
Mounting of Spline Shaft and Positioning Shaft
2. The positioning shaft is mounted in the spline
shaft according to the disassembly marks.
New parts have to be positioned according to the
assembly drawing. The shaft must be pressed home in
the spline shaft before being screwed together.
4. See tightening torque on assembly drawing.
Section 11: BHH Re-Mounting
December 2019
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