Xylem P81673H Series 1510 - Manual (Page 20)

To hold wedges or shims in place, allow the grout to flow around them.
When you pour the grout, remove air bubbles from it by using one of these methods:
• Puddle with a vibrator.
• Pump the grout into place.
5. Allow the grout to set.
Coupling alignment
WARNING:
Always disconnect and lock out power to the driver before you perform any installation or
maintenance tasks. Failure to disconnect and lock out driver power will result in serious
physical injury.
Alignment guidelines
Follow these guidelines when you align the coupling:
• Only perform alignment by moving or shimming the motor.
• Since adjustments in one direction can alter the alignment in another direction, check
the alignment in all directions after you make a correction.
• Make sure that the pump and motor bolts are tight when you take all measurements.
• Perform a final alignment check after the unit reaches its final operating temperature.
Prepare for alignment
1. Check the pump and motor shafts and remove any paint, burrs, and rust.
2. Slide the hubs and bushings on the shafts with keys.
3. Hold one half element on the hubs in order to determine the appropriate hub spacing.
4. If you use spacer elements with high speed rings, hold both half elements on the hubs
in order to make sure the hubs do not interfere with the rings.
5. You can install the hubs with the hub extension facing in or out.
Make sure the shaft extends into the hubs at least 0.8 times the diameter of the shaft.
6. Lightly fasten the hubs to the shafts in order to prevent them from moving during
alignment.
7. Align the hubs to the values shown in Maximum allowable misalignment for Rexnord
Omega couplings.
You can perform alignment with lasers, dial indicators, or with a straight edge and
calipers.
Align the pump using a straight edge and calipers
1. Check the angular misalignment:
Tool Procedure
Calipers 1. Gauge the distance between the two hubs at various points around the
circumference.
Do not rotate the shafts.
2. Reposition the equipment until the difference between the minimum and maximum
distance values is within the permissible range.
See Maximum allowable misalignment for Rexnord Omega couplings.
Installation
18 Series 1510 Installation, Operation, and Maintenance Manual