Spring Cylinder Reassembly - Emerson Bettis CBA*30-SR series Service Instructions Manual

Service Instructions
137463E Rev. D
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 flange
3.2.20 Install housing adapter (6-10), with installed center bar assembly (8-10), on to the
3.2.21 Coat one O-ring seal (5-10) with lubricant and install onto outer diameter flange
3.2.22 Actuators equipped with cylinder adapter (4-15), models CBA830-SR, CBA930-SR
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 identified in Section 1 step 1.6 for lubricating the part being installed.
3.3.1
3.3.2
3.3.3
3.3.4
3.3.5
3.3.6
3.3.7
3.3.8
Actuator Reassembly
located on housing adapter end of housing (1-10).
cylinder adapter end of housing (1-10).
located on cylinder adapter end of housing (1-10).
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 flange, 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).
Coat all areas of piston (4-50) with lubricant.
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).
Coat rod T-seal (5-25) with lubricant and install in the internal seal groove in the
head of piston (4-50).
Coat piston seal (5-40) with lubricant and install into outer diameter seal groove of
piston (4-50).
Coat piston bearing (5-45) with lubricant and install into outer diameter bearing
groove of piston (4-50).
Install bushing (1-60) between the two arms of yoke (1-20).
With the piston head facing away from housing (1-10) install piston assembly
(4-50) onto center bar assembly (8-10).
Carefully slide piston assembly (4-50) along center bar assembly (8-10) until the
yoke pin engages the slots of yoke (1-20).
Section 3: Actuator Reassembly
August 2015
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