Emerson Bettis M18 Installation, Operation And Maintenance Manual page 14

Section 3: M18 System Fluid Filling Instructions
April 2021
CAUTION
!
Never allow the M18 reservoir to be pumped dry of hydraulic fluid.
NOTE:
Add fluid to the reservoir through the open port left vacant in step 3.2.2.1.
For sizes G7+
3.2.3
NOTE:
If a pump motor is not available go to step 3.2.2 (Method number 2) for the manual field
service refilling procedure.
NOTE:
Only remove the pipe plugs located at the highest point, in the vertical plane, of the
hydraulic override cylinder.
10
3.2.2.4 Fill reservoir to 1 - 1/2 inches from top of reservoir end cap (10 - 10).
3.2.2.5 Start pumping the hydraulic fluid into the system with the
M18 pump handle.
3.2.2.6 Stop pumping the M18 pump handle when hydraulic fluid appears
as follows:
3.2.2.6.1 G-Series - At the vacant pipe plug port located in the
hydraulic override end cap.
3.2.2.6.2 HD and T-Series - At both vacant pipe plug ports located in
the actuator's hydraulic override cylinder.
3.2.2.7 Apply pipe dope onto pipe plug threads and install into the vacant pipe
plug port as follows:
3.2.2.7.1 G-Series - At the vacant pipe plug port located in the
hydraulic override end cap.
HD and T-Series - At both vacant pipe plug port located in
3.2.2.7.2
the actuator's hydraulic override cylinder.
3.2.2.8 Stop the air on the power module, wait the spring back to 0°.
3.2.2.9 Fill the M18 reservoir 1 - 1/2 inches from the top of the reservoir after
redundant fluid bleeded out of the reservoir.
3.2.2.10 Apply pipe dope to the breather (10 - 90) threads and install into the
port on top of the reservoir upper end cap (10 - 10).
Refilling Method Number 1
Refilling of the M18 Manual Hydraulic Override System is best accomplished using
a pump motor.
3.2.3.1 Remove one pipe plug from the spring cartridge hydraulic override
outer end cap.
Installation, Operation and Maintenance Manual
M18 System Fluid Filling Instructions
VA-DC-000-1879 Rev. 0