(M)
Hand Pump Selection Valves
(L)
Hand Pump
(J)
Opening Solenoid
(K)
Closing Solenoid
K
J
L
M
I
M
Installation, Operation and Maintenance Manual
VCIOM-13254-EN Rev. 3
February 2021
25
Section 4: Set-up/Start-up Procedure
Set-up/Start-up Procedure
4.4.2
2-Way Remote Electric with an ESD solenoid function
Figure 15
2-Way Remote Electric Without an ESD Solenoid Function Schematic
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.
4.4.2.1
Check the Reservoir (I) to see the hydraulic is at the proper level.
4.4.2.2
Close Handpump Isolation Valve (O)
4.4.2.3
Rotate downward in the horizontal position both Handpump Selector
Valves (M).
4.4.2.4
Select and push inward the open or close knob located on the Handpump
Selectoranifold (L).
4.4.2.5
Use supplied Handpump Handle to discharge hydraulic fluid into the
open or close side of the actuator cylinder.
4.4.2.6
Continue hand pumping until the actuator completes the open or close
stroke and contacts the actuators adjustable end stops.
4.4.2.7
After completion of the hand pumping operation, push the Pump
Bypass Valve located on the top of the Handpump Selector Manifold (L)
and pull the pump handle downward retracting the pump ram into the
pump body.
4.4.2.8
Rotate both Handpump Selector Valves (M) back into the upward
vertical position.
4.4.2.9
Check the Reservoir (I) to see the hydraulic fluid is at the proper level.
4.4.2.10
Once the ESD solenoid signal is re-established, slowly open
Handpump Isolation Valve (O).
MANIFOLD
(M) Handpump Selection Valves
(L) Handpump
(J)
Opening Solenoid
(K) Closing Solenoid
CLOSE