Emerson Bettis CBB Series - Page 21

October 2015
Service Instructions
VA001-196-30 Rev. 1
18
Section 3: Actuator Reassembly
Actuator Reassembly
NOTE:
Rotate the M3 jackscrew into the M3 adapter (4-55) until the inboard end of the M3 jack-
screw is up against the M3 adapter (4-55).
The M3 adapter will be installed from the cylinder side of end cap (4-20).
3�3�26�5 Install M3 adapter (4-55) into end cap (4-20).
3�3�26�6 Install retainer ring (5-60) into outboard groove located on outer
diameter of M3 adapter (4-55).
3�3�26�7 Install thread seal (5-30) onto M3 jackscrew (1-70).
NOTE:
Movethethreadseal(5-30)downtheM3jackscrewuntilitisnexttotheM3adapter(4-55).
3�3�26�8 Installhexnut(4-40)andCSKwasher(5-35)ontoM3jackscrew(1-70).
NOTE:
RotatethehexnutdowntheM3jackscrewuntilitisnexttotheM3adapter(4-55).
3�3�27 End cap outer diameter seal installation.
3�3�27�1 For CBB415/520/725 models install O-ring seal (5-15) onto the outer
diameter of end cap (4-20).
3�3�27�2 For CBB315/420/525 models install O-ring seal (5-10) onto the outer
diameter of end cap (4-20).
NOTE:
Position the end cap (4-20) so that the inlet port is at the bottom and the M3 jackscrew (4-
30) is at the top of the actuator.
3�3�28 Install end cap (4-20) onto center bar (8-10) and cylinder (4-10).
WARNING: FOLLOW STEPS CORRECTLY
If step 3.3.29 is not completed as described the center bar O-ring seals (5-20) may become
a source of pressure leakage and cause the actuator to fail.
3�3�29 Installthesecondhexnut(8-20)ontothecylinderendofcenterbar(8-10).Adjust
thetwohexnuts(8-20)suchthattheapproximatesamenumberofthreadsis
exposedontheendsofthecenterbar(8-10).