G01 Through G5 M18 Hydraulic Override Cylinder Reassembly - Emerson Bettis G Series Installation, Operation And Maintenance Manual

Spring-return pneumatic actuators with m18 hydraulic override
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Installation, Operation and Maintenance Manual
VA-DC-000-1878 Rev. 0
3.4.20 Install lock washers (3 - 140) onto socket cap screws (3 - 130).
3.4.21 Install and tighten socket cap screws (3 - 130), with lock washers (3 - 140),
3.4.22 Install pneumatic power module per Section 5, steps 5.4.
3.5
G01 through G5 M18 Hydraulic Override
Cylinder Reassembly
NOTE:
Review Section 3.1, General Reassembly before proceeding with G01 through G5
M18 Hydraulic Override Cylinder Reassembly.
3.5.1
3.5.2
NOTE:
The lip of Polypak seal (8 - 30) are to face toward the hydraulic override end cap when
installed in the hydraulic ram cover.
3.5.3
3.5.4
NOTE:
When installing the hydraulic ram (7 - 20) push it through the hydraulic ram cover until the
ram is at least flush with the outboard ram cover.
3.5.5
3.5.6
NOTE:
For M18 Hydraulic Override Cylinder installations refer to Section 5, step 5.2.
Actuator Reassembly
into outer end cap (3 - 80).
Install ram bushing (8 - 20) into hydraulic ram cover (7 - 10).
Install Polypak seal (8 - 30) into hydraulic ram cover (7 - 10).
Install rod wiper (8 - 10) into hydraulic ram cover (7 - 10).
Install hydraulic ram (7 - 20) into hydraulic ram cover (7 - 10).
Install O-ring seal (8 - 35) into inner diameter seal groove located at the outboard
end of the threads in the hydraulic override end cap (7 - 70).
Install hydraulic ram cover (7 - 10) into the hydraulic override end cap (7 - 70) by
screwing the ram cover into the end cap until the ram cover bottoms out into the
end cap.
Section 3: Actuator Reassembly
December 2020
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