Emerson Bettis G Series - 2.4 G01 through G5 M18 Hydraulic Override Cylinder Disassembly; 2.5 G7 through G10 M18 Hydraulic Override Cylinder Disassembly

Installation, Operation and Maintenance Manual
VA-DC-000-1878 Rev. 0 December 2020
13
Section 2: Actuator Disassembly
Actuator Disassembly
2.3.28 Housing (1 - 10) vent check assembly removal as follows:
2.3.28.1 G01, G2 and G3 housing (1 - 10) unscrew and remove one vent check
assembly (13) from the front of housing (1 - 10).
2.3.28.2 G4 through G10 housing (1 - 10) unscrew and remove two vent check
assemblies (13) from the front of housing (1 - 10).
2.3.29 The following items do not need to be removed from their assembled locations
unless being replaced by new items: Two guide bar bearings, two yoke bearings
(2 - 40), yoke pin bearing, yoke pin thrust bearing (2 - 10) and spring pin (1 - 100).
2.4 G01 through G5 M18 Hydraulic Override
Cylinder Disassembly
NOTE:
For M18 Hydraulic Override Cylinder removal from spring cartridge refer to Section 5, step
5.1. Refer to drawing VA122588 for details.
2.4.1 Unscrew hydraulic ram cover (7 - 10) from hydraulic override end cap (7 - 70).
2.4.2 Remove hydraulic ram (7 - 20) from hydraulic ram cover (7 - 10).
2.5 G7 through G10 M18 Hydraulic Override
Cylinder Disassembly
NOTE:
For M18 Hydraulic Override Cylinder removal from spring cartridge refer to Section 5, step
5.1. Refer to drawing VA121411 for details.
2.5.1 Unscrew and remove hex cap screws (7 - 80) with lock washers (7 - 90) from outer
end cap (7 - 70).
2.5.2 Remove outer end cap (7 - 70) from hydraulic cylinder assembly (7 - 10).
2.5.3 Remove piston rod (7 - 20) from hydraulic cylinder assembly (7 - 10).
2.5.4 Refer to assembly drawing sheet 1 Detail "G". Remove two split ring halves (7 - 30)
and one retainer ring (7 - 40) from one side of piston (7 - 50).
2.5.5 Refer to assembly drawing sheet 1 Detail "G". Remove two split ring halves (7 - 30)
and one retainer ring (7 - 40) from the other side of piston (7 - 50).
2.5.6 Remove piston (7 - 50) from piston rod (7 - 20).
2.5.7 Remove vent tube (7 - 60) from the hydraulic cylinder assembly.
2.5.8 Pipe plug (7 - 110) does not require removal for routine service.
2.5.9 Pipe plug (7 - 120) does not require removal for routine service.