Flowserve L120-85 Actuator - Manual (Page 28)

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 unit 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).
7.8 Remove Declutch Lever
Assembly
1. Before removing the Declutch Lever Assembly (piece 9), loosen
Hex Head Screws and Lockwashers (piece #s 50-5 and 50-6)
and rotate the Declutch Lever Stop Plate (piece 11) in the
CW
direction to free the Declutch Lever Assembly.
2. Remove Socket Head Shoulder Screws (piece 50-7) to remove
the Clutch Latch Assembly (piece 32) and Latch Spring (piece
33).
7.9 Remove Clutch Assembly
Remove Clutch Assembly comprised of (piece 19-1) Clutch,
(piece 19-2) Ball Bearing and (piece 19-3) Retaining Ring.
7.10 Remove Clutch Pinion
Assembly
1. Use a socket wrench extension or another bar device to exert
force against the face of the Clutch Pinion Assembly; this will
release some of the spring tension compressed behind the
Clutch Pinion Assembly by the Declutch Compression Spring
(piece 30). With some of the tension released from the Clutch
Pinion Assembly, use retaining ring pliers to remove Retaining
Ring (piece 41) that holds the Clutch Pinion Assembly in place.
2. Remove the Clutch Pinion Assembly (piece #s 18-1, 18-2, 18-3)
and the Declutch Compression Spring (piece 30).
Limitorque L120-85 Installation, Operation and Maintenance FCD LMENIM1202-00 – 11/05
28