Installation Instructions
Document No: 129-553 
Installation Instructions 
December 22, 2011 
Remove Actuator from Valve, Continued 
3.  Use a 1-1/4-inch open end wrench to loosen the 
coupling piece. 
4.  Remove the actuator from the valve. 
Mounting an Actuator to a Valve 
1.  If you are attaching the actuator to a new valve, 
remove the protective plastic cap from the valve 
stem. See 
Figure 3. 
EA1327R1
VPI45.., VPI45..Q
Figure 3. 
2.  Turn the manual-positioning knob 
counterclockwise to “0”. See 
Figure 4. 
EA1328R1
Figure 4. 
3.  Place the actuator on the valve. See Figure 5. 
EA1329R1
1
2
Figure 5. 
4.  Use a 1-1/4-inch open-end wrench to tighten the 
coupling piece to a maximum of 22 ft-lbs. See 
Figure 6. 
EA1330R1
Figure 6. 
5.  Use either a Phillips head screwdriver or a flat- 
blade screwdriver to remove the actuator cover for 
access to the terminal block, selector plug, and 
jumper wire. See 
Figure 7. 
EA1331R1
M30 x 1.5
1
1
2
1
Figure 7. 
6.  Attach wires, set the selector plug and if 
necessary, cut the R–M jumper. See Wiring. 
7.  Place the cover on the actuator. The positioning 
knob must be at “0” to fit into the shaft. If the cover 
does not fit, turn it 180 degrees. 
Page 2 of 4  Siemens Industry, Inc. 




