Flowserve L120-85 Actuator - Manual (Page 24)

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 automatically
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 stor-
age.
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.
Limitorque L120-85 Installation, Operation and Maintenance FCD LMENIM1202-00 – 11/05
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