Drive Module Disassembly - Emerson Bettis G Series Installation, Operation And Maintenance Manual

Section 2: Actuator Disassembly
December 2020
NOTE:
Piston (3 - 30) acts as the retainer for outboard split ring halves (3 - 50).
2.2.11 Remove O-ring seal (4 - 70) from piston rod (3 - 40).
2.2.12 Remove hex cap screws (3 - 100) with lock washers (3 - 110) from housing (1 - 10).
2.2.13 Remove inner end cap (3 - 10) off piston rod (3 - 40).
NOTE:
On early model G2 and G3 actuators remove two hex nuts (3 - 90) from housing (1 - 10).
These two nuts will be loose after tie bars (3 - 20) are removed in step 2.2.8.1 and will be in
the area where the piston rod passes through the housing (1 - 10).
NOTE:
The piston rod (3 - 40) removal as outlined in step 2.2.14 is only required when the piston
rod is being replaced or when the drive module is to be disassembled.
2.2.14 Unscrew and remove piston rod (3 - 40) from drive module.
2.3

Drive Module Disassembly

NOTE:
Review Section 2, steps 2.1.1 through 2.1.5 General Disassembly before proceeding with
Drive Module Disassembly. Refer to drawing VA138334.
2.3.1
2.3.2
NOTE:
Stop screws will be removed later in this procedure.
10
2.2.10.2 Slide piston (3 - 30) toward the inner end cap (3 - 10) until the outboard
split ring halves are exposed enough for removal. Remove outboard split
ring halves from piston rod (3 - 40).
2.2.10.3 Remove piston (3 - 30) and two split ring halves (3 - 50) from
piston rod (3 - 40).
If not already removed remove piston rod (3 - 40) from drive module.
Mark stop screws (1 - 180) left and right. The setting of stop screws (1 - 180) should
be checked and setting recorded before stop screws are loosened or removed.
Installation, Operation and Maintenance Manual
VA-DC-000-1878 Rev. 0
Actuator Disassembly