Flowserve SMB Series Electric Actuators - Manual (Page 71)

71
SMB Series/SB Series Installation and Maintenance FCD LMENIM1401-04-AQ – 01/15
flowserve.com
11. Install motor gearing shims in Motor Adapter (piece #5) bearing bores and install the Motor
Adapter Gasket (piece #84) and Motor Adapter (piece #5). Tap the Motor Adapter to ensure that
the bearings seat.
12. Check Intermediate Pinion and Shaft (piece #15) for proper shims. Shaft should rotate freely
with no axial movement. Use original shims or provide new shims that are the same thickness as
measured at disassembly.
13. Install Motor (piece #115).
14. Install Spirolox Ring (piece #106) on the Hollow Drive Shaft (piece #55).
15. Install Declutch Housing (piece #2) using two screws only to compress the Belleville Springs
(piece #58). DO NOT install gasket.
16. Using two screws, thread Cartridge Stem Locking Nut (piece #48) on the Bearing Cartridge Stem
(piece #45) until the Locking Nut is snug against the Thrust Washer (piece #46).
17. Remove the Declutch Housing (piece #2) and make sure the set screw hole is aligned with the
spot mark on the Bearing Cartridge Stem threads. Tighten Cartridge Stem Locking Nut set screw.
18. Reinstall Declutch Housing with Gasket (piece #80).
19. Install Gear Mounting Bracket Assembly (pieces #8, #65, and #93).
20. Install Handwheel Gear (piece #6) and Spirolox Ring (piece #107).
21. Install Splined Insert (piece #54), Spring Washer (piece #61), and Clutch Compression Spring
(piece #68).
22. Install Sliding Clutch Gear (piece #51) onto Hollow Drive Shaft (piece #55) splines.
23. Install Solid Drive Shaft (piece #43), ensuring that the Clutch Gear Spacer (piece #47) is in place.
Align splines on the Solid Drive Shaft and Output Worm Shaft Gear and push the Drive Shaft into
the Housing (piece #1) from the declutch end.
24. Mount Handwheel Shaft Bearings (pieces #94 and #97) on the Handwheel Shaft and Pinion
(piece #40) and install assembly into the Housing.
25. Install the Declutch Shaft (piece #30) and Torsion Spring (piece #57) into the Declutch Cap (piece
#59).
26. Install Declutch Shaft Assembly through the bottom of the Declutch Housing (piece #2).
a. The Declutch Shaft Assembly consists of Declutch Shaft (piece #30), Torsion Spring (piece
#57), Declutch Cap (piece #59), Drum (piece #27), Declutch Arm (piece #66), Declutch Shaft
Washers (piece #70, three pieces), Declutch Fork (piece #14), Declutch Shaft Spacer (piece
#69), Collar (piece #103), and Gasket (piece #81).
27. Align scribe marks.
NOTE: Declutch shaft must be installed with keyseat facing right side of declutch housing when
viewed from the declutch end of the actuator.
28. Fasten Declutch Cap (piece #59). Observe punch marks.
29. Insert Roll Pin (piece #110) through the Declutch Arm (piece #66) and Declutch Shaft (piece
#30).
30. Ensuring that the declutch shaft bottoms against the declutch cap, push the Collar (piece #103)
against the top of the housing and tighten the collar set screw.