Section 5: Module Removal And Installation; M18 Override Cylinder Removal - Emerson Bettis G Series Installation, Operation And Maintenance Manual

Section 5: Module Removal and Installation

December 2020
Section 5: Module Removal and Installation
5.1

M18 Override Cylinder Removal

5.1.1
5.1.2
NOTE:
Control knob (25 - 200) is in front and at the bottom of the M18 pump manifold (20 - 10 - 10).
NOTE:
Using a means of capturing the hydraulic fluid that will be lost during the following steps.
Use a bucket, tub, and large container, etc.
5.1.3
5.1.4
WARNING
!
Do not stand in front of cylinder. Confirm that the M18 pump control knob is in the auto
position prior to completing step 5.1.5. Do not stand directly in front of the M18 Override
Cylinder when completing step 5.1.5 - Stand to one side or the other.
5.1.5
5.1.6
CAUTION
!
Do not remove hex cap screws (7 - 80) from M18 Override Cylinder at this time. If hex cap
screws (7 - 80) are removed at this time it is possible that hydraulic fluid will be dumped
inside the spring cartridge.
32
Shut off and exhaust the operating media from both sides of the actuator's
power cylinder.
Place the M18 pump control knob (25 - 200) in the auto position.
Remove all the piping from the M18 override cylinder end cap (7 - 70).
M18 Hydraulic Override Cylinder removal: For models G01 through G5, use step
5.1.5 and for G7 through G10, use step 5.1.6.
G01 through G5 M18 override cylinder removal.
5.1.5.1 Unscrew and remove hex cap screws (7 - 80) with lock washers (7 - 90)
from override cylinder end cap (7 - 70).
5.1.5.2 Remove override cylinder assembly from spring cartridge assembly (5 - 10).
G7 through G10 M18 override cylinder removal.
5.1.6.1 Unscrew and remove hex cap screws (7 - 100) with lock washers (7 - 90)
from override cylinder end cap (7 - 70).
Installation, Operation and Maintenance Manual
VA-DC-000-1878 Rev. 0
Module Removal and Installation