Priming M18 In The Field - Emerson Bettis M18 Installation, Operation And Maintenance Manual

Installation, Operation and Maintenance Manual
VA-DC-000-1879 Rev. 0
NOTE:
The pressure pump should not exceed 50 psi when force filling the M18 hydaulic system.
3.3

Priming M18 in the Field

3.3.1
3.3.2
3.3.3
3.3.4
3.3.5
3.3.6
3.3.7
3.3.8
M18 System Fluid Filling Instructions
3.2.3.2 Stroke actuator using power module operating fluid to the fully stroked
position and lock in place.
3.2.3.3 Connect pump motor hose to fitting hole on the reservoir top end cap
(10 - 10), keep pipe plug on the other hole.
3.2.3.4 Place the M18 pump knob in the auto position.
3.2.3.5 Start pumping the hydraulic fluid into the system with the pump motor.
3.2.3.6 Stop the pump motor when hydraulic fluid appears at the vacant pipe
plug port located in the hydraulic override end cap.
3.2.3.7 Apply pipe dope onto pipe plug threads and install into the vacant pipe
plug port at the vacant pipe plug port located in the hydraulic override
end cap.
3.2.3.8 Start pump motor to stroke the hydraulic ram to its fully
extended position.
3.2.3.9 Place the M18 pump control knob in the "Manual" position. Install the
handle to M18 pump and do 2-3 stroke, make sure the hydraulic piston
rod touches the tension rod. Shut off and exhaust the operating media
from the actuator's power cylinder, and check the actuator position
indicator if happen changes.
3.2.3.10 Remove the breather (10 - 90) from the top of the reservoir upper end
cap (10 - 10).
3.2.3.11 Stop the air on the power module, wait for the spring to return to 0°.
3.2.3.12 Fill reservoir to 1 - 1/2 inches from top of reservoir end cap (10 - 10)
after redundant fluid bleeded out of the reservoir.
Pull the Quick Release Pin (20 - 10 - 110) connected to Cable Assembly
(20 - 10 - 230).
Rotate the Pump Handle Lever (20 - 10 - 90) 180° to get it out of the way.
Use a 13/16" open end wrench to keep the Pump Rod (20 - 50) from rotating while
you use a 3/16" hex Allen wrench to loosen 1/8" Pipe Plug (20 - 10 - 210). It needs
to be loosened to allow trapped air to be pumped out the Pump Rod (20 - 10 - 50).
Reattach the Pump Handle Lever (20 - 10 - 90) to the Pump Rod (20 - 10 - 50) with
the Quick Release Pin (20 - 10 - 110).
Pump until all air is out of the Pump Rod (20 - 10 - 50) and you are getting clear
fluid coming out around the Pipe Plug (20 - 10 - 210).
Stop pumping – pull the Quick Release Pin (20 - 10 - 110) – use the 3/16" hex Allen
wrench and 13/16" open end wrench to tighten the 1/8" Pipe Plug (20 - 10 - 210).
Reinstall the Quick Release Pin (20 - 10 - 110) connecting the Pump Handle Lever
(20 - 10 - 90) to the Pump Rod (20 - 10 - 50).
You should have a good prime now and be able to pump the M18 to complete
your override job.
Section 3: M18 System Fluid Filling Instructions
April 2021
11