April 2021
Installation, Operation and Maintenance Manual
VA-DC-000-1879 Rev. 0
4
Section 2: General Information
General Information
Section 2: General Information
2.1
Actuator Power Operation
!
CAUTION
Power operation of the actuator with the M18 control knob in any other position than
“AUTO” will cause fluid to overflow in the reservoir.
2.1.1
Place the M18 control knob (25 - 200) in the Auto position (middle position).
NOTE:
The control knob (25 - 200) is in front and at the bottom of the M18 pump.
!
WARNING
Do not exceed the maximum operating pressure rating of the actuator.
2.1.2
Apply an operating media, of the correct pressure, through a control valve to the
actuator's power cylinder.
2.2
Actuator M18 Manual Hydraulic Operation
2.2.1
Shut off and exhaust the operating media from both sides of the actuator’s
power cylinder.
2.2.2
M18 Manual Hydraulic Operation as follows:
2.2.2.1
Double-Acting Actuators – Select actuator rotation desired by placing
the control knob (25 - 200) in the Manual CW or Manual CCW position.
2.2.2.2
Spring-Return Actuators – Place the control knob (25 - 200) in the
Manual position.
2.2.3
Operate the M18 pump handle until required valve position is reached.
NOTE:
When the actuator is fully stroked against the travel stops, an increased resistance in
pumping effort will be noticed. Continued operation of the pump simply circulates fluid
through a relief valve.
