Accutronix MX Actuator Subassembly
Accutronix MX Maintenance & Spare Parts Manual 130-12000 Revision B • November 2002
• Actuator viewed in upright position (top-mounted handwheel up)
Oil level should be approximately 1 inch (25.4 mm) below the outer surface of the housing at the oil
fill port.
NOTE: Do not overfill with oil because oil will expand during actuator operation. Actuators are
shipped with an oil volume suitable for any mounting position. When checking the factory-
supplied oil level, excess oil may drain from the highest oil fill port due to the various
mounting orientations of each application.
• Actuator viewed in side-mounted position (terminal compartment up)
Oil level should be up to the bottom of the oil fill plug.
• Actuator viewed in all other positions than described previously should have the oil capacities main-
tained. Fill through the highest oil fill port until the oil is at a level that will contact the bottom of the
pipe plug when installed in oil fill port.
Figure 2.3 – Oil Fill/Plug Locations
Lubrication Data
• Oil Specifications
MX actuators are oil-filled using Mobile SHC-632, which is a synthetic oil suitable for ambient tempera-
tures of -22˚F to 250˚F (-30˚C to 120˚C). For extreme low temperature conditions, alternative
lubricants are available – consult factory for further information.
Table 2.2 – MX-05 & 10 Oil Capacities when using Oil Fill/Plug Ports
Nominal Oil Capacities oz. liters
MX-05 10 0.3
MX-10 16 0.5
Table 2.3 – MX-20 Oil Capacities when using Oil Fill/Plug Ports
Nominal Oil Capacities oz. liters
Top-mounted handwheel with
handwheel up 38 1.1
Top-mounted handwheel with
terminal compartment up 47 1.4
Side-mounted handwheel with
terminal compartment up 43 1.3
2-4
Flow Control Division
Limitorque Actuation Systems
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