Emerson Bettis CBB Series - Page 20

October 2015
Service Instructions
VA001-196-30 Rev. 1
17
Section 3: Actuator Reassembly
Actuator Reassembly
3�3�21 Actuators equipped with cylinder adapter (4-15), models CBB520 and 725, do
steps as follows:
3�3�21�1 Installcylinderadapter(4-15)ontotheangeofhousing(1-10)andover
O-ring seal (5-10), with the stepped outer diameter, of cylinder adapter
(4-15), facing away from housing (1-10).
3�3�21�2 Install one o-seal (5-15) onto stepped diameter of cylinder adapter (4-15).
3�3�22 Apply a coating of lubricant to entire bore of cylinder (4-10).
3�3�23 Pneumatic cylinder installation:
3�3�23�1 For CBB520 and 725 models, install the lubricated cylinder (4-10) over
the piston and up-against the O-ring seal (5-15) on the stepped diameter
angeofcylinderadapter(4-15).
3�3�23�2 For CBB315, 420 and 525 models install the lubricated cylinder (4-10)
overthepistonandup-againsttheO-ringseal(5-10)ontheangeof
housing (1-10).
3�3�24 Coat O-ring seal (5-20) with lubricant and install into internal diameter seal groove
of the end cap (4-20).
3�3�25 M3 Jackscrew (4-30) End Cap Installation for CBB315/415-M3 Model Actuators
(includes M3HW models).
3�3�25�1 Apply a light coating of lubricant to the threads of M3 jackscrew (4-30).
NOTE:
The M3 jackscrew will be installed from the cylinder side of end cap (4-20).
3�3�25�2 Install and rotate M3 jackscrew (4-30) into end cap (4-20).
NOTE:
Rotate the M3 jackscrew into the end cap (4-20) until the inboard end of the M3 jackscrew
is up against the end cap (4-20).
3�3�25�3 Install seal (5-30) onto M3 jackscrew (1-70).
NOTE:
MovetheO-ringseal(2-30)downtheM3jackscrewuntilitisnexttotheendcap(4-20).
3�3�25�4 Continue reassembly at step 3.3.27.
3�3�26 M3 Jackscrew End Cap (4-20) Installation for CBB420-M3 through CBB725-M3
Model Actuators (includes M3HW models).
3�3�26�1 Apply a coating of lubricant to outer diameter and inner diameter threads
of M3 adapter (4-55).
3�3�26�2 Coat O-ring seal (5-45) with lubricant and install into outer diameter seal
groove located in the M3 adapter (4-55).
3�3�26�3 Apply a light coating of lubricant to the threads of M3 jackscrew (4-30).
3�3�26�4 Install and rotate M3 jackscrew (4-30) into M3 adapter (4-55).