Bettis P/N 127073E
Revision “A”
Page 27 of 37
5.4.1
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).
5.4.2
Unscrew or back out stop screw (1-180) to achieve overtravel as illustrated in detail “A” on
warning tag attached to Spring Module cover plate or to Bettis drawing part number
123650.
5.4.3
Install o-ring seal (6-20) into the o-ring groove in the inboard end of spring cartridge
assembly (5-10).
5.4.4
Using lifting equipment move Spring Module up to housing (1-10) and align spring
cartridge tension rod with extension rod assembly (9-50).
WARNING:
COMPLETE STEP 5.4.5 TO AVOID SEVER INJURY TO PERSONNEL OR
INCUR MAJOR DAMAGE TO THE ACTUATOR.
5.4.5
SPRING CARTRIDGE TENSION ROD TO ROD EXTENSION INSTALLATION AS
FOLLOWS:
5.4.5.1 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.
5.4.5.2 After confirming initial thread engagement rotate tension rod into extension rod
assembly (9-50) per the following table.
WARNING:
After initial thread engagement the tension rod must be rotated clockwise
the minimum number of turns listed in the following table.
ACTUATOR MODEL
TORQUE UNITS
G01
G2
G3
G4
G5
G7
G8
G10
MINIMUM NO TURNS
N/A
N/A
10
10
10
13
14
20
25
WARNING:
When screwing tension rod into extension rod assembly (9-50) make
certain that the tension rod and extension rod assembly threads do not
cross-thread.
5.4.6
Torque tighten the spring cartridge tension rod as listed in the following table.
SPRING CARTRIDGE TENSION ROD TORQUE TABLE
HOUSING
TORQUE (±5 % Percent)
HOUSING
TORQUE (±5 % Percent)
MODEL
Lbs. Ft
N.m
MODEL
Lbs. Ft
N.m
G01
50
68
G5
240
325
G2
90
122
G7
240
325
G3
90
122
G8
240
325
G4
240
325
G10
240
325
5.4.7
Install lock washers (5-30) onto hex cap screws (5-20).
