LMAIM1501 LY Installation and Maintenance for LY 1001, LY 2001 and LY 3001 5-5
Table 5.3 – Control Cover and Conduit Pipe Plug Hardware
Unit Type Control Cover Conduit Pipe Plug
Quantity Size Quantity Size
LY 1001 (WP & XP) 6 M8 x 40 mm 2 1” NPT Socket
Hex Head
LY 2001/3001 8 M12 x 50 mm (WP) 2 1” NPT Socket
M12 x 55 mm (XP) Hex Head
5. Adjust the Limit Switches, Mechanical Stops, and Position Indication Dial following the procedures detailed in
Section 5.6, Limit Switch and Mechanical Stop Settings.
6. Connect the wiring to the terminal strips provided on the actuator. Refer to the wiring diagram supplied with
the actuator. “Fork-type” terminal connections are recommended.
7. Insert a Conduit Pipe Plug in the unused conduit entrance if the wiring that enters the actuator uses only one
conduit entrance.
NOTE:
A. Explosionproof actuators require approved “sealing fittings” installed in accordance with the National
Electric Code.
B. Submersible actuators require an approved “sealing fitting” in order to keep water from entering the
actuator.
8. Attach grounding wire to Grounding Lug (piece #141).
9. Verify motor rotation direction to ensure that the limit switch is wired properly for intended operation. (See
Section 6.2, Verify Correct Motor Rotation (Phasing) and OPEN/CLOSE Pushbutton Operation.)
Figure 5.5 – Grounding Lug Location
10. Reinstall Control Cover (piece #3).
NOTE: Submersible actuators require tightening the Control Cover Bolts and Integral Control Cover Bolts to a
specified torque in order to maintain submersibility. (See Table 5.4 for specific torque settings.)
Table 5.4 – LY Control Cover and Integral Control Cover Bolt Sizes and Torques
Unit Type Control Cover Integral Compartment
LY 1001 M8 - 10 to 15 ft-lb M10 - 15 to 20 ft-lb
LY 2001/3001 M12 - 20 to 25 ft-lb M10 - 15 to 20 ft-lb
Unit is now ready for electrical operation.
#141 Grounding Lug
To earth ground
Flow Control Division
Limitorque Actuation Systems
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