Section 2: Actuator Disassembly; General Disassembly - Emerson CBA730 Disassembly And Reassembly

Service Instructions
137462E Rev. D

Section 2: Actuator Disassembly

2�1

General Disassembly

WARNING: DANGEROUS GAS AND/OR LIQUIDS
It is possible, that the actuator may contain a dangerous gas and/or liquids. Ensure that
all proper measures have been taken to prevent exposure or release of these types of
contaminants before commencing any work.
CAUTION: DO NOT EXCEED OPERATING PRESSURE
Pressure applied to the actuator is not to exceed the maximum operating pressure rating
listed on the actuator name tag.
NOTE:
Before starting the general disassembly of the actuator, it is a good practice to operate
actuator with the pressure used by the customer during normal operation. Notate and
record any abnormal symptoms such as jerky or erratic operation.
2.1.1
NOTE:
In place of stop screws, the actuator may be equipped with one or two ES (ES = Extended
Stops) or M3/M3HW located on outboard end of housing (1-10) and end cap (4-20).
2.1.2
2.1.3
Actuator Disassembly
Remove all operating pressure from actuator.
Record the settings of stop screw, ES or M3 jackscrews (6-30) and (4-30) before
they are loosened or removed.
To help in correct reassembly, all mating parts should be marked or tagged for
ease of reassembly, i.e. cylinder to cylinder adapter, cylinder adapter to housing,
housing to torque shaft and housing to housing adapter, etc.
Section 2: Actuator Disassembly
August 2015
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