Flowserve SMB Series Electric Actuators - Manual (Page 57)

57
SMB Series/SB Series Installation and Maintenance FCD LMENIM1401-04-AQ – 01/15
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Table 7.2 – SMB-00 Parts List (continued)
Piece Quantity Description
141 4 Flat Head Machine Screw
143 3 Pipe Plug (Only 1 shown)
144 4 Pipe Plug (Only 3 shown)
148 1 Drive Sleeve Bevel Gear
154 2 Socket Head Cap Screw
156 1 Key
157 6 Socket Head Cap Screw
158 6 Lockwasher
159 4 Lockwasher
160 4 Round Head Machine Screw
162 4 Flat Head Socket Cap Screw
164 1 Key
165 2 Socket Head Set Screw
166 1 Socket Head Cap Screw
167 1 Lockwasher
168 2 Key
169 1 Key
170 1 Socket Head Set Screw
173 1 Hex Head Cap Screw
174 4 Stud
175 4 Hex Nut
176 4 Lockwasher
177 1 Socket Head Set Screw
178 1 Key
7.3 SMB-0, 1, 2, 3 and 4
c WARNING: See Section 4.1 and 4.2 on Safety Precautions and Safety Practices before
proceeding with disassembly.
7.3.1 To Replace the Stem Nut Only
c WARNING: Do not remove the Locking Nut (piece #30) with the actuator under load or with valve
under pressure.
a CAUTION: If valve must be left in service while the stem nut is replaced, the valve stem must be
locked in such a way as to prevent any movement of the valve stem.
1. Remove Locking Nut (piece #30). The locking nut is staked in two places; locate the stakes and
spot with a drill.
2. Clean all metal particles.
3. Lift Stem Nut (piece #20) out of the top of the actuator.
If the actuator is mounted on a valve having a threaded stem, and stem nut removal is required,
proceed as follows:
1. Remove Locking Nut (piece #30).