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Limitorque L120-85 Installation, Operation and Maintenance FCD LMENIM1202-03-A4 – 06/15
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the Declutch Shaft which is keyed to the Declutch Link (piece 7-1). The Declutch Link engages the Clutch Ball Bearing (piece 19-2) which
disengages the Clutch from the Motor Cam and engages the Handwheel Lugs (piece 3-1). The Clutch Latches (piece 32) hold the Clutch
Assembly in MANUAL operation until the Motor is energized. Lobes on the Motor Cam (piece 38) cause the Clutch Latches to release when
the Motor is energized. The spring-loaded Clutch (piece 19-1) reengages with the lugs on the Motor Cam. The Declutch Lever will automati-
cally disengage when the Motor begins operating.
5.3 Electrical Start-up Procedure
1. Check that the actuator has been correctly lubricated. This is particularly important if the actuator has been in long-term storage.
2. Ensure that the Limit Switch and Torque Switch have been properly set.
3. If the valve stem is not visible, remove the Pipe Plug (piece 45) to observe the output direction of the Drive Sleeve (piece 25).
4. Engage MANUAL operation and hand crank actuator well away from the OPEN or CLOSED end-of-travel.
5. Turn power ON and push the OPEN button to electrically operate the actuator.
6. Check output rotation; if Motor rotation (phase) is correct, the valve will begin to open. If the valve begins to close,
Stop Immediately.
7. Correct the Motor rotation by following the procedure “Verifying Motor Rotation Direction” in Section 4.4.
8. The actuator should operate correctly and will stop at the end of travel by the Torque and Limit Switch functions.
9. Replace Pipe Plug (piece 45).
10 . If your actuator configuration has a control package, consult you specific controls package Installation and Maintenance Manual for
proper set-up and calibration.