Emerson Bettis M18 - Page 14

April 2021
Installation, Operation and Maintenance Manual
VA-DC-000-1879 Rev. 0
10
Section 3: M18 System Fluid Filling Instructions
M18 System Fluid Filling Instructions
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CAUTION
Never allow the M18 reservoir to be pumped dry of hydraulic fluid.
3.2.2.4 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 3.2.2.1.
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.
3.2.2.7.2 HD and T-Series - At both vacant pipe plug port located in
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).
For sizes G7+
3.2.3 Refilling Method Number 1
Refilling of the M18 Manual Hydraulic Override System is best accomplished using
a pump motor.
NOTE:
If a pump motor is not available go to step 3.2.2 (Method number 2) for the manual field
service refilling procedure.
3.2.3.1 Remove one pipe plug from the spring cartridge hydraulic override
outer end cap.
NOTE:
Only remove the pipe plugs located at the highest point, in the vertical plane, of the
hydraulic override cylinder.