Check Rotation - Emerson Bettis EHO Installation, Operation And Maintenance Manual

Section 4: Set-up/Start-up Procedure
December 2022
4.6

Check Rotation

4.6.1
4.6.2
NOTE:
On spring-return units, fail-safe close units OPEN with the power cylinder and spring-return
CLOSE. Fail-safe open units CLOSE with the power cylinder and spring-return OPEN.
4.6.3
4.6.4
Figure 14
4.6.5
4.6.6
NOTE:
If the EHO Actuator is supplied with optional ESD, before operating a motor-powered
stroke, a customer supplied ESD signal must be present and Solenoid Valve (17) energized.
24
Turn on the electrical supply to the unit. If an ((optional)) Circuit Breaker Module is
supplied, turn the Circuit Breaker to ON.
Turn the LOCAL-OFF-REMOTE selector switch to LOCAL.
Ensure Flow Control Valves (7) are adjusted fully counterclockwise for
maximum flow.
Open inspection port on side of unit to observe the rotation of the
motor/pump shaft.
Inspection Port for Motor Rotation
While observing the inspection port, for motor rotation, push and release the
OPEN/CLOSE PUSHBUTTON to power stroke the actuator and immediately push
the STOP pushbutton. Verify the motor rotation is consistent with the decal on the
on motor tag, looking from the back of the motor.
If needed, correct motor rotation.
Installation, Operation and Maintenance Manual
VA001-507-32 Rev. 1
Set-up/Start-up Procedure