MEA INC
2600 American Lane | Elk Grove Village, IL 60007 | USA
T +1 847 766 9040 | F +1 847 350 1951
COMPLETE CONTROL
www.meaincorporated.com
MEA Incorporated | Hawk Actuator Instruction and Operation Manual
02/2018
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3) Couple the actuator piston rod to the valve stem using the MEA provided coupling and securely
tighten the coupling screws.
4) With actuator mounting bolts or spud nut still loose, use the HMI in Manual mode to stroke the
actuator fully closed and fully open. The actuator should align itself with the valve.
5) Tighten the remaining mounting bolts or spud nut to firmly attach the yoke to the valve.
6) Stroke the actuator several more times fully closed and fully open to verify there are no signs of
misalignment.
5-2.2 Rotary Actuator Alignment
For proper rotary actuator alignment, perform the following procedure:
1) Rotate the shaft of the valve to the fully closed position.
2) Using the HMI in Manual mode, stroke the actuator to the position that corresponds to the
valve’s fully closed position.
3) Couple the actuator to the valve
4) Stroke the actuator several times fully closed and fully open to verify there are no signs of
misalignment.
5-3 Mechanical Installation Checklist
Prior to final commissioning of the Hawk actuator, confirm the following:
The actuator is fastened securely to the valve/damper
The coupling is properly installed and secured
The actuator and valve/damper are aligned correctly
All tubing and fittings are tight
5-4 Hydraulic Fluid Level Indicator
For proper performance the Hawk actuator must be filled with the appropriate volume of hydraulic fluid
and be purged of any air that may be present in the hydraulic fluid system. The hydraulic fluid level
indicator for each Hawk actuator is located inside the lower portion of the HPS enclosure. The HPS cover,
which is secured by eight (8) ¼-20 x 1 socket head cap screws (3/16” hex Allen wrench required for
removal), must be removed to access the level indicator.
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