Emerson Bettis CBA830-SR-M3HW - Spring Cylinder Reassembly

Service Instructions
137463E Rev. D August 2015
13
Section 3: Actuator Reassembly
Actuator Reassembly
WARNING: DO NOT SCRATCH CENTER BAR ASSEMBLY
Care should be taken during installation of center bar assembly so as to not scratch it or
damage the housing adapter O-ring seal (5-20).
NOTE:
Rotate the hex nut down the M3 jackscrew until it is next to the M3 adapter.
3.2.18 Recoat center bar assembly (8-10) with lubricant.
3.2.19 Coat O-ring seal (7-10) with lubricant and install onto outer diameter ange
located on housing adapter end of housing (1-10).
3.2.20 Install housing adapter (6-10), with installed center bar assembly (8-10), on to the
cylinder adapter end of housing (1-10).
3.2.21 Coat one O-ring seal (5-10) with lubricant and install onto outer diameter ange
located on cylinder adapter end of housing (1-10).
3.2.22 Actuators equipped with cylinder adapter (4-15), models CBA830-SR, CBA930-SR
and CBA1030-SR, do steps 3.2.22.1 and 3.2.22.2.
3.2.22.1 Install cylinder adapter (4-15) onto housing ange, with the stepped outer
diameter, of cylinder adapter (4-15), facing away from housing (1-10).
3.2.22.2 Install one O-ring seal (5-15) onto stepped diameter of cylinder adapter (4-15).
3�3 Spring Cylinder Reassembly
NOTE:
Review Section 3 steps 3.1.1 through 3.1.4 before proceeding with spring cylinder
reassembly.
In section 3.3 where the step indicates to "lubricate, coat or apply lubricant", use lubricant
as identied in Section 1 step 1.6 for lubricating the part being installed.
3.3.1 Coat all areas of piston (4-50) with lubricant.
3.3.2 If removed coat rod bushing (5-50) with lubricant and install into the internal rod
bushing groove located in the head of piston (4-50).
3.3.3 Coat rod T-seal (5-25) with lubricant and install in the internal seal groove in the
head of piston (4-50).
3.3.4 Coat piston seal (5-40) with lubricant and install into outer diameter seal groove of
piston (4-50).
3.3.5 Coat piston bearing (5-45) with lubricant and install into outer diameter bearing
groove of piston (4-50).
3.3.6 Install bushing (1-60) between the two arms of yoke (1-20).
3.3.7 With the piston head facing away from housing (1-10) install piston assembly
(4-50) onto center bar assembly (8-10).
3.3.8 Carefully slide piston assembly (4-50) along center bar assembly (8-10) until the
yoke pin engages the slots of yoke (1-20).