Emerson Bettis G2 Series Disassembly And Reassembly

October 2015
Service Instructions
127072E Rev. C
23
Section 5: Module Removal and Installation
Module Removal and Installation
NOTE:
To identify hex cap screws (7-100) from hex cap screws (7-80), hex cap screws (7-100) will
be located to the left and right of spring-return cartridge top dead center and will then be
counted as every other hex cap screw. To verify correct hex cap screws check the following
table for screw length.
Table 4� Wire Length Requirements
MODEL
G/GC/GH/
GHC
ITEM 7-80 LENGTH ITEM 7-100 LENGTH
Inches mm Inches mm
G7 2 50.8 2.75 69.85
G8 3 76.2 4.5 114.3
G10 3.5 88.9 5.0 127
5�1�6�2 Remove override cylinder assembly from spring cartridge assembly (5-10).
5�2 M11 Override Cylinder Installation
5�2�1 Install O-ring seal (6-10) into the O-ring groove in the outboard end of spring
cartridge assembly (5-10).
5�2�2 M11 hydraulic override cylinder installation: For models G01 through G5 use step
5.2.3 and for G7 through G10 use step 5.2.4.
5�2�3 G01 through G5 M11 override cylinder installation
5�2�3�1 Insert M11 hydraulic override cylinder assembly through spring cartridge
outer end.
5�2�3�2 Install lockwashers (7-90) on to hex cap screws (7-80).
5�2�3�3 Install hex cap screws (7-80) with lockwashers (7-90) through hydraulic
override end cap (7-70) and into outer end of spring cartridge (5-10).
5�2�4 G7 through G10 M11 override cylinder installation
5�2�4�1 Insert M11 hydraulic override cylinder assembly into spring cartridge
outer end.
5�2�4�2 Install lockwashers (7-90) on to eight hex cap screws (7-100).
5�2�4�3 Install hex cap screws (7-100) with lockwashers (7-90) through hydraulic
override end cap (7-70) and into outer end of spring cartridge (5-10).
5�2�5 Torque tighten hex cap screws (7-100 and 7-80), alternately until a nal lubricated
torque, as listed in the following table, has been achieved.
Table 5� M11 Override Cylinder End Cap to SR Cartridge Screw Torque
Model
TORQUE (±5%)
Model
TORQUE (±5%)
Lbf-ft� N-m Lbf-ft� N-m
G01 16 21.68 G5 40 54.2
G2 16 21.68 G7 80 108.4
G3 16 21.68 G8 130 176.15
G4 40 54.2 G10 190 257.45

Emerson Bettis G2 Series Specifications

General

Brand	Emerson
Model	Bettis G2 Series
Category	Controller
Language	English