29
Service Instructions
MAN-02-08-77-0714-EN Rev. 2
September 2020
Section 4: Set-up/Start-up Procedure
Set-up/Start-up Procedure
4.5
Hydraulic Test
The system has been hydrostatic and function tested at the factory before shipping.
This test is to discover if any leaks have developed in the hydraulic fittings during shipping.
NOTE:
The components referenced below are referencing Schematic 4.4.2. and is for illustration
purposes only. When using this procedure refer to the Bettis EHO Actuator General
Arrangement Drawing and Hydraulic Schematic for the unit being worked on.
4.5.1
Rotate both Hand Pump Isolation Valves (O) to the downward horizontal position.
4.5.2
Select and push inward the open or close knob located on the Hand Pump Selector (L).
4.5.3
Use supplied Hand Pump Handle to discharge hydraulic fluid into the open or close
side of the actuator cylinder.
4.5.4
Once the actuator is fully stroked and makes contact with the actuators adjustable
stops, observe if any leakage is detected at any tube fittings or port connections
from the Hand Pump to the Actuators operating ports.
4.5.5
Push the Pump Bypass Valve located on the top of the Hand Pump Selector (L) and
pull the pump handle downward retracting the pump ram into the pump body.
4.5.6
Select and push inward the opposite open or close knob located on the Hand
Pump Selector (L).
4.5.7
Repeat steps 4.5.3 thru 4.5.5.
4.5.8
Rotate both Hand Pump Selector Valves (M) back into the upward vertical position.
4.6
Check Rotation
NOTE:
The components referenced below are referencing to schematic found in Section 10.2 and
is for illustration purposes only. When using this procedure refer to the Bettis EHO Actuator
General Arrangement Drawing and Hydraulic Schematic for the unit being worked on.
4.6.1
Turn on the electrical supply to the unit. If an ((optional)) Circuit Breaker Module is
supplied, turn the Circuit Breaker to ON.
4.6.2
Turn the LOCAL-OFF-REMOTE selector switch to LOCAL.
4.6.3
Ensure Flow Control Valves (V) are adjusted fully counterclockwise for maximum flow.
4.6.4
Open inspection port on side of unit to observe the rotation of the motor/pump shaft.