Xylem P81673H Series 1510 - Manual (Page 23)

e) Rotate both coupling halves together and make sure that the index lines remain
matched.
f) Reposition the equipment until the offset is within the permissible value.
2. Check the parallel misalignment:
a) Mount the dial indicator base to one coupling half, or shaft.
b) Position the dial indicator button on the outside diameter of the opposite coupling
half.
c) Set the dial to zero.
d) Rotate both coupling halves together and make sure that the index lines remain
matched.
e) Reposition the equipment until the offset is within the permissible value.
Align the Rexnord
®
Omega
®
coupling
WARNING:
• Install coupling capscrews and setscrews using either a torque wrench or another torque
measuring device. Hardware that is not installed per the listed torque values can become
loose and dislodge from the coupling assembly. Failure to follow these instructions can
result in serious personal injury or death, or property damage.
• Do not use capscrews with damaged or absent thread lock coating. Otherwise, you do
not achieve the required counterforce and the hardware can become loose and
dislodge from the coupling assembly. Failure to follow these instructions can result in
serious personal injury or death, or property damage.
1. Recheck the hubs to be certain that both the angular and parallel alignments are still
within the proper range.
2. Loosen the setscrew on the pump hub.
3. Torque all element and high speed ring capscrews to the values shown in Fastener
torque values and maximum RPM for Rexnord Omega couplings.
If possible, recheck angular and parallel alignments.
4. Loosely install one half of the coupling opposite the hub setscrews.
5. Loosely install the other half of the element onto the hubs.
6. Install capscrews on the high speed rings.
If the capscrews and the holes in the elements do not line up properly due to hub
misalignment, slightly rotate the shafts.
7. Torque both hub setscrews to the values shown in the Fastener torque values and
maximum RPM for Rexnord Omega couplings table.
For QD or Taperlock hubs, follow the instructions supplied with the bushings.
1
2
1. Element
2. Hub
Figure 6: Rexnord Omega coupling – typical spacer
Installation
Series 1510 Installation, Operation, and Maintenance Manual 21