Service Instructions
137462E Rev. D
August 2015
17
Section 3: Actuator Reassembly
Actuator Reassembly
3.3.14.6 Install retainer ring (5-60) into exposed outer diameter groove in M3
jackscrew adapter (4-55).
3.3.14.7 Install O-ring seal (5-30) onto M3 jackscrew (4-30).
NOTE:
Move the O-ring seal (5-30) down the M3 jackscrew until it is next to the
M3 jackscrew adapter.
3.3.14.8 Install hex nut (4-40) onto M3 jackscrew (4-30).
NOTE:
Rotate the hex nut down the M3 jackscrew until it is next to the M3
jackscrew adapter.
3.3.15 End cap outer diameter seal installation.
3.3.15.1 For CBA830, CBA930 and CBA1030 models, install O-ring seal (5-15)
onto the outer diameter of end cap (4-20).
3.3.15.2 For CBA730 models, install O-ring seal (5-10) onto the outer diameter of
end cap (4-20).
3.3.16 Install end cap (4-20) onto center bar (8-10) and into cylinder (4-10). Position the
end cap (4-20) so that the inlet port is at the bottom and the ES, cylinder stop
screw or M3 jackscrew (4-30) is at the top of the actuator.
WARNING: COMPLETE STEP 3.3.17
If step 3.3.17 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.
3.3.17 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).
WARNING: DO NOT ALLOW END CAP TO ROTATE
Do not allow end cap (4-20) to rotate during center bar tightening. The end cap must
maintain the position as described in step 3.3.16. M3 jackscrew must be installed to be
in alignment with the target located on the piston assembly (4-50). If the M3 does not
contact the target during M3 adjustments the groove pin (12-20) is subject to failure.
3.3.18 Torque tighten center bar assembly (8-10) to 233 foot pounds / 316 N-m.
3.3.19 End Cap (4-20) ES or stop screw (4-30) installation.
3.3.19.1 Lubricate ES or stop screw (4-30) and install into end cap (4-20).
3.3.19.2 Install O-ring seal (5-30) onto ES or stop screw (4-30).
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