Service Instructions
137463E Rev. D
August 2015
7
Section 2: Actuator Disassembly
Actuator Disassembly
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
Remove all operating pressure from actuator, allowing the spring to stroke. The
spring will rotate the yoke to its fail position.
NOTE:
In place of stop screws, the actuator may be equipped with one or two ES
(ES = Extended Stops) or one M3/M3HW (6-30) located on outboard end of housing (1-10).
2.1.2
Record the settings of stop screw (6-30) / ES (6-30) / M3 jackscrew (6-30) and stop
screw (4-30) / ES (4-30) before they are loosened or removed.
2.1.3
CBAX30-SR-M3/M3HW:
2.1.3.1 Remove retainer ring (12-30) from M3 jackscrew (6-30).
2.1.3.2 Remove groove pin (12-20) from optional hex drive hub or from handwheel
(12-10).
2.1.3.3 Remove optional hex drive hub or handwheel (12-10) from M3 jackscrew
(6-30).
2.1.3.4 Remove caution tag (12-40) from M3 jackscrew (6-30).
2.1.4
Loosen and remove hex nut (6-40) from stop screw (6-30), ES (6-30) or M3 jackscrew
(6-30).
2.1.5
Remove stop screw (6-30) or ES (6-30) from housing adapter (6-10).
