Installation, Operation and Maintenance Manual
VA-DC-000-1879 Rev. 0
April 2021
7
Section 3: M18 System Fluid Filling Instructions
M18 System Fluid Filling Instructions
3.1.3 Refilling Method Number 2
Refilling the M18 Manual Hydraulic Override System without using a pump motor.
3.1.3.1
Remove breather (10 - 90) from the top of the reservoir end cap (10 - 10).
3.1.3.2
Remove the bleed plugs from the following locations:
NOTE:
Only remove the pipe plugs located at the highest points, in the vertical plane, of the
hydraulic override cylinder.
3.1.3.2.1
G-Series Actuators remove plug from the top of the outer
and inner end caps of the hydraulic override cylinder.
3.1.3.2.2
T-Series Actuators remove pipe plugs from the top area
located on the outer and inner end caps of the hydraulic
override cylinder.
3.1.3.2.3
HD-Series Actuators remove pipe plug from the top area
on the outer end caps of the hydraulic override cylinder and
the cylinder adapter.
3.1.3.3
Place the M18 pump control knob in the “Manual” position.
!
CAUTION
Never allow the M18 reservoir to be pumped dry of hydraulic fluid.
3.1.3.4
Fill reservoir to 1 - 1/2 inches from top of reservoir end cap (10 - 10).
NOTE:
Add fluid to the reservoir through the open port left vacant in step 3.1.3.1.
3.1.3.5
Start pumping the hydraulic fluid into the system with the
M18 pump handle switch the control knob to the other "Manual"
position when hydraulic fluid appears at one of the vacant pipe
plug port, refill the reservoir with fluid as needed to prevent the pump
being operated without fluid.
3.1.3.6
Stop pumping the M18 pump handle when hydraulic fluid appears
at both vacant pipe plug ports located in the actuator’s hydraulic
override cylinder.
3.1.3.7
Apply pipe dope onto pipe plug threads and install into the vacant pipe
plug ports at both vacant pipe plug ports located in the actuator’s
hydraulic override cylinder.
3.1.3.8
Fill the M18 reservoir 1 - 1/2 inches from the top of the reservoir.
3.1.3.9
Apply pipe dope to the breather (10 - 90) threads and install into the
port on top of the reservoir upper end cap (10 - 10).
