Flowserve Limitorque L120-85 - 7.2 Open Electrical Compartment & Disconnect Motor; 7.3 Remove Control Wiring; 7.4 Remove Limit and Torque Switch; 7.5 Remove Motor Assembly

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Limitorque L120-85 Installation, Operation and Maintenance FCD LMENIM1202-03-A4 – 06/15
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b. Lift actuator completely off of the Mounting Adapter or Thrust Base Assembly.
c. Disconnect Motor and remove control wiring (see next two sections).
d. Drive 2 Only: Rotate the Thrust Base Assembly off the threaded Valve Stem.
7.2 Open Electrical Compartment & Disconnect Motor
1. Turn power to the actuator OFF.
2. Open or remove the Electrical Compartment Cover (piece 200-1) by loosening pieces 200-2 and 200-3. Refer to illustrated parts
breakdown.
3. Disconnect motor leads from the Terminal Strip (Refer to your wiring diagram to locate motor lead wiring numbers).
7.3 Remove Control Wiring
1. Slowly remove one of the Pipe Plugs (piece 50-24) to release any air pressure built up within the actuator. Refer to illustrated parts
breakdown.
2. If actuator has an Integral Assembly, remove all Integral Assembly wiring that is connected to the Terminal Strip.
7.4 Remove Limit and Torque Switch
1. Remove the M6 Hex Head Cap Screws and Lockwashers (piece #s 305-47 and 48) from the base of the Limit Switch (piece 305).
2. Remove the M6 Socket Head Cap Screw and Lockwasher (piece #s 300-20 and 21) from the base of the Torque Switch (piece 300).
3. Remove the Limit Switch (piece 305) and Torque Switch (piece 300) from the actuator with associated wiring intact.
7.5 Remove Motor Assembly
1. Remove the M10 Hex Head Cap Screws and Lockwashers (piece #s 50-3 and 50-4) to remove the Motor (piece 31-1).
2. Slide the Motor (piece 31-1) away from the actuator and pull the motor leads through the conduit hole.
7.6 Remove Handwheel
Loosen Set Screw (piece 29-1A) from the Handwheel Hub Assembly (piece 29-1) and remove Handwheel (piece 29-2) and Handwheel Hub
Assembly then remove Handwheel Shaft Key (piece 2-1) from the Handwheel Shaft (piece 2).
7.7 Remove Handwheel Shaft Assembly
NOTE: Before disassembling the Handwheel Shaft Assembly, make note of the number of Handwheel Shims (piece #s 6-1 and 6-2)
that are used on each side of the Handwheel Bushing (piece 4-1). This will allow reassembly of Handwheel Shims without need to
re-measure gap between actuator Housing face (piece 1) and Bushing (piece 4-1) for shimming requirements.
1. Remove the M10 Hex Head Cap Screws and Lockwashers (piece #s 50-3 and 50-4) to remove the Handwheel End Cap (piece 5).
2. Remove Handwheel Shaft Assembly comprised of (piece 2) Handwheel Shaft, (piece 3-1) Handwheel Lug, (piece 3-2) Spring,
(piece 3-3) Roll Pin, (piece 4-1) Handwheel Bushing, (piece 4-2) Handwheel Spacer, (piece 4-3) Retaining Ring, (piece 6-1) Handwheel
Shims, (piece 6-2) Handwheel Shims, (piece 43) O-ring and (piece 44) O-ring (not shown).