Emerson Bettis M Series - Section 4: Manual HandPump Hydraulic Override; 4.1 Hydraulic Fluid Level; 4.2 Remote Mounting the HandPump

Installation, Operation and Maintenance Manual
MAN-02-01-39-0704-EN Rev. 0 July 2019
Manual HandPump Hydraulic Override
Section 4: Manual HandPump
Hydraulic Override
See Figure 4.
A. Maintain uid level to ll line using ISO-22 hydraulic uid. Use Chevron "Hydraulic
Oil AW" or equal.
B. The selector control valve is set in center position for remote operation. Select left
or right positions for manual open or manual close as shown on pump label.
C. Store and lock handle to keep pump plunger closed. Do not remotely operate
actuator with handle on plunger.
4.1 Hydraulic Fluid Level
The uid level in the handpump reservoir changes when the actuator is operated.
The uid level is high when the hydraulic cylinder piston rod is retracted into the hydraulic
cylinder. The uid level is low when the hydraulic cylinder piston rod is extended out of
the hydraulic cylinder. Measure the uid level in the low position, using a dip stick, and
maintain this level as shown on the sticker (1 inch above the pump base). Operate the
actuator open and closed and view the uid level to verify where the low position is.
Be sure to tighten the ll port plug securely.
CAUTION
Do not exceed this uid level or uid may squirt out of the relief valve.
4.2 Remote Mounting the HandPump
The handpump is normally installed on the actuator with the ll port on top.
When installed on a valve in a pipeline, the ll port must remain on top regardless of the
angle of the valve in the pipeline. This may require the handpump to be reinstalled in the
eld. The handpump can be remote mounted on an adjacent structure.
The optimum position is close to and above the actuator. If the handpump is located below
the actuator, BOTH speed control valves must be completely closed before removing the
reservoir ll plug to check the uid level. This will prevent hydraulic uid from draining out
of the actuator. Reset both speed controls after the ll plug is reinstalled.
NOTE
Handpump must not be located more than 33' lower than the actuator.
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Section 4: Manual HandPump Hydraulic Override