Flowserve SMB Series Electric Actuators - Manual (Page 70)

SMB Series/SB Series Installation and Maintenance FCD LMENIM1401-04-AQ – 01/15
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a. Loosen two set screws on Bearing Cartridge Cap (piece #44) and unscrew Bearing Cartridge
Stem (piece #45).
21. Slide Bearing Cartridge Cap (piece #44) off toward Worm (piece #56) threads.
22. Loosen set screw and remove Bearing Locknut (piece #100).
23. Press off two Bearing Cone and Cups (pieces #90 and #91).
NOTE: Cups and cones are sets. They must remain together, in sets.
7.4.2 SMB-5 and SMB-5T Reassembly
Piece numbers refer to Figures 7.13, 7.14, and 7.15.
NOTE: Clean the housing and all parts before reassembly. During reassembly ensure that same
thickness gaskets and shims are installed as were removed during disassembly.
SMB-5T (Torque Housing)
1. Press two Bearing Cone and Cups (piece #90 and 91) onto Worm (piece #56), ensuring that
bearing races are matched. Ensure the Bearing Spacer (piece #92) is installed.
2. Install Bearing Locknut (piece #100) and tighten set screw.
3. Apply heat to the Bearing Cartridge Cap (piece #44) and install onto the Bearing Cone and Cup
(piece #90, #91) from the Worm (piece #56) end. Ensure that the Bearing Cartridge Cap seats on
the Bearing .
4. Thread the Bearing Cartridge Stem (piece #45) tightly into the Bearing Cartridge Cap and tighten
two set screws.
5. Install Bearing Cartridge/Worm Assembly in Housing (piece #1).
6. Replace the Belleville Spring Assembly components in the following order: Thrust Washer (piece
#46), the six Belleville Springs (piece #58) (stacked as shown), Torque Limit Sleeve (piece #62),
and the second Thrust Washer (piece #46).
NOTE: Ensure that the non-beveled flat side of thrust washer is against the springs. Springs stack this
way: ( )( )( ).
7. Thread Cartridge Stem Locking Nut (piece #48) onto the Bearing Cartridge Stem (piece #45) by
hand.
8. Install Hollow Drive Shaft (piece #55).
a. Install Geared Limit Threaded Collar (piece #32) and key on motor end of Hollow Drive Shaft
with threaded end toward Worm (piece #56).
b. Slide Bearing (piece #95) onto Hollow Drive Shaft (piece #55).
c. Thread Bearing Locknut (piece #99) onto the Hollow Drive Shaft. Align the set screw hole with
the drilled “spot” on the shaft. Install and tighten set screw. (Hold drive shaft using adjustable
spanner on splines.)
9. Push Hollow Drive Shaft (piece #55) to declutch end and install Bearing Spacer (piece #64).
10. Install the Output Worm Shaft Gear (piece #42) and Intermediate Pinion and Shaft (piece #15).