Roller Screw Lubrication Procedure (Port 6); Figure 1-3. Roller Screw Assembly Lubrication - Woodward ELA 21 Product Manual

Manual 35128

Roller Screw Lubrication Procedure (Port 6)

Lubricating the Roller Screw Assembly (See Fig. 1-3)
1. Clean the outside of the actuator to ensure that no debris gets inside the actuator during the
lubrication process. Any debris on the internal components will reduce its life.
2. Command the actuator to the 0% position so that the Roller Screw Port Plug will align with the Roller
Screw Grease Port per Figure 7-3.
3. Remove the roller screw port plug with a 1/4 inch hex wrench.
4. Set the plugs aside and keep clean, ensuring that the inside plug surface is not scratched or marred.
5. Attach the thread connector of the grease syringe to the threaded grease port of the roller screw.
Fully seat the fitting.
6. Inject 4 cm³ of Woodward approved grease (3901-1003) into the roller screw grease port.
7. Remove the grease syringe from the roller screw grease port and install the roller screw port plug and
torque the port plug to 2.5–3.2 Nꞏm / 22–28 lb.-in (Figure 7-1).
Woodward
Released

Figure 1-3. Roller Screw Assembly Lubrication

ELA21/28 Lubrication Procedure
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