Mounting Examples; Adaptation Of Actuator Stroke To The Valve Stroke (Rsd, Only) - ABB LME620-AN Operating Instruction

LME / RSD10 / RSD20 / RSD50 / RSD100 (Contrac) ELECTRICAL LINEAR ACTUATOR | OI/LME/RSD10/100-EN REV. G

Mounting examples

1 Thrust rod cover (only RSD)
2 Control motor
3 Handwheel
4 Fixing screws (8.8)
5 External limit stop
6 Coupling
7 Valve stem
Figure 8: Mounting examples
8 Valve yoke
9 Valve
0 Mechanical position indication
k Thrust rod
l Screw plug for stop (only RSD)
m Thrust rod cover (only RSD)
Adaptation of actuator stroke to the valve
stroke (RSD, only)
The factory-set actuator stroke corresponds to the stroke
named on the ID-label + 1 mm (0.04 in). If an application requires
stroke adjustment, proceed as follows (comply with min. / max.
stroke; see "Specification"):
Note
With a mounting position other than IMV 1, drain the oil until the
oil level is below the thrust rod cover (see Figure 8,
1. Drive the thrust rod completely out with the handwheel. The
internal limit stop should now be touching the driving sleeve.
2. Loosen the screws of the thrust rod cover and remove the
cover.
3. Open the screw plug in the thrust rod cover.
4. Both Allen clamping screws are accessible through the
opening. Loosen the screws.
5. Use the handwheel to drive in the thrust rod until the
actuator stroke matches the required valve stroke.
6. Turn the internal limit stop (slotted ring nut) with a
screwdriver clockwise until it is touching the drive sleeve.
Finally, turn it back approx. 1 turn.
7. Tighten both Allen screws to the required torque.
RSD10 / RSD20: 26 Nm (19.18 lbf-ft)
RSD50: 26 Nm (19.18 lbf-ft)
RSD100: 40 Nm (29.5 lbf-ft)
8. Reattach the cover for the thrust rod.
9. Screw in the lateral screw plug.
10. Fill the oil according to mounting position.
13
m ).