Emerson Process Management BETTIS G01 User Manual
Page 37
Bettis P/N 124840E
Revision “B”
Page 33 of 46
5.2
SPRING MODULE INSTALLATION
CAUTION:
Due to the weight and size of Spring Module, heavy duty support equipment
will be required when installing spring cartridge module to the actuator
housing. For the approximate weight of the spring cartridge refer to Section
6.
WARNING
ACTUATOR MUST BE IN THE APPROPRIATE OVERTRAVEL POSITION
(Refer to detail “A” on warning tag attached to Spring Module access hole
cover or to Bettis drawing part number 130084 for G01 models or part
number 123650 for G2 through G13 models). Confirm over-travel position by
observing the guide block (1-30) is against the inner wall of housing (1-10).
NOTE: The setting of stop screws (1-180) should be checked and setting recorded before stop
screws are loosened or removed.
5.2.1
On stop screw (1-180), that is located on the same side of the housing as spring cartridge
(5-10), loosen stop screw nut (1-190).
5.2.2
Unscrew or back out stop screw (1-180) to achieve over-travel as illustrated in detail “A” on
warning tag attached to Spring Module cover plate or to Bettis drawing part number
123650.
5.2.3
Install o-ring seal (6-20) into the o-ring groove in the inboard end of spring cartridge
assembly (5-10).
5.2.4
Using lifting equipment move Spring Module up to housing (1-10) and align spring
cartridge tension rod with extension rod assembly (9-50) for G2 through G13 models or
G01 models align spring cartridge with tapped hole in guide block (1-30).
WARNING:
COMPLETE STEP 5.2.5 TO AVOID SEVER INJURY TO PERSONNEL OR
INCUR MAJOR DAMAGE TO THE ACTUATOR.
5.2.5
SPRING CARTRIDGE TENSION ROD TO ROD EXTENSION INSTALLATION AS
FOLLOWS:
5.2.5.1 Using a male square drive extension, go through the open end of Spring Module
(5-10) and rotate the tension rod nut until initial thread engagement is achieved.
NOTE: Confirm initial thread engagement of rod extension (9-50) to tension rod.
5.2.5.2 After confirming initial thread engagement rotate tension rod into extension rod
assembly (9-50) per the following table.