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Section 8: Failure Mode Change
May 2020
Section 8: Failure Mode Change -
(Models 003-100) Symmetric Yoke Actuators Only
Conversion from "fail close" to "fail open" is accomplished by flipping the actuator over
(i.e. left to right). The top and bottom of the center housing have identical mounting
flanges and output shaft dimensions. Remove the vinyl pointer and indicator plate and
mount them on opposite side of actuator.
(Models 023-7114) Canted and Symmetric Yoke Actuators (Except Noted Above)
Conversion requires removal of the spring cylinder assembly and reinstallation on the
other side of the housing. It is recommended that fail open and fail closed be ordered
from the factory.
16
Spring-Return
Installation, Operation and Maintenance Manual
MAN-03-04-103-0738-EN Rev. 1
Failure Mode Change
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