Emerson CBA730 - Add an M3 Jackscrew to Cylinder Outer End Cap (4-20); Add M11 Override Cylinders and Pump Package

August 2015
Service Instructions
137462E Rev. D
24
Section 5: Field Conversions
Field Conversions
5�6 Add an M3 Jackscrew to Cylinder Outer
End Cap (4-20)
5.6.1 Prior to disassembly, review all of Section 1 - Introduction.
5.6.2 Disassemble the actuator per Section 2.1 - General Disassembly, Section 2.2 -
Pneumatic Cylinder Disassembly steps 2.2 .2 through step 2.2.5.
5.6.3 Prior to actuator reassembly, review all of Section 3.1 - General Reassembly, 3.2 -
Housing Reassembly, and 3.3 - Pneumatic Cylinder Reassembly.
5.6.4 If new M3 outer end cap (4-20) is not pre assembled with the M3, then assembly
M3 to the outer end cap (4-20) per Section 3.3 step 3.3.14.
WARNING: M3 INSTALLATION LIMITATIONS
The M3 cannot be installed on a standard CBA actuator unless the M3 targets are installed
on the piston assembly as shown in Figure Number 2. If the M3 is operated with a piston
that does not have a target, the groove pin (12-20) is subject to failure.
5.6.5 Add the M3 targets to the piston assembly (4-50) per Figure 2 - M3 piston targets.
5.6.6 Install the assembled M3 outer end cap (4-20) per Section 3.3 steps 3.3.1 through
3.3.13 and steps 13.3.15 through to the end of Section 4 - Actuator Testing.
5�7 Add M11 Override Cylinders and Pump Package
5.7.1 Consult factory for further information.