July 2020
Installation, Operation and Maintenance Manual
VA-DC-000-1803 Rev. 2
14
Section 2: Actuator Disassembly
Actuator Disassembly
2.5.1
Place the M18 pump control knob (25 - 200) in the auto position.
Use dwg. VA-ED-005-1120 for this Section.
NOTE:
Control knob (25 - 200) is located in front and at the bottom of the M18 pump manifold
(20 - 10 - 10). Using a means of capturing the hydraulic fluid that will be lost during the
following steps. Use a bucket, tub, or large container, etc.
2.5.2
Remove all the piping from the M18 override manifold (20 - 10 - 10) to the
actuator and reservoir (10).
2.5.3
Remove mounting bracket (30 - 90) from the actuator.
2.5.4
Remove all counter-sunk cap screws (30 - 100) from the mounting bracket (30 - 90).
2.5.5
Remove acorn nut (25 - 450), lock washer (25 - 460), control knob (25 - 200)
and control pointer (25 - 150) from the M18 override.
2.5.6
Remove socket cap screws (25 - 240) from the cover (20 - 10 - 140).
NOTE:
Note the bottom two access holes to reach socket cap screws are blocked by instruction
tag (25 - 220) and will need to be removed and replaced (new instruction tag is provided in
service kit).
2.5.7
Pull out quick release pin (20 - 10 - 110) from the pump handle lever (20 - 10 - 90).
Remove counter-sunk cap screws (30 - 100) from the mounting bracket (30 - 90).
2.5.8
Remove socket head cap screws (20 - 10 - 100) from the back brace (20 - 10 - 130).
2.5.9
Remove pipe plug (20 - 10 - 210), spring (20 - 10 - 360) and ball (20 - 10 - 350).
If the back plate (20 - 10 - 320) is not coming out, use soft mallet to gently tap the
open end of stem, control valve (20 -10 - 280) in order to remove the backplate
assembly and stem assembly.
NOTE:
The piston, control valve (20 - 10 - 310) is under spring tension and it will eventually pop
out, user beware and find means to capture the piston (20 - 10 - 310), spring (20 - 10 - 390),
washer bearing (20 - 10 - 380) and thrust bearing (20 - 10 - 370).