Xylem G&L A-C 9100 Series, Instruction Manual

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Do not rotate the shafts.
c) Reposition the equipment until the offset is within the permissible range.
See Maximum allowable misalignment for couplings.
A coupling with a 3° angular misalignment will have a 0.191 in. (0.485 cm)
difference in measurements between L1 and L2. This is within the 0° to 4°
misalignment that is allowed for that size of coupling.
1
2
1. Straight edge
2. Feeler guage
Figure 4: Check the alignment using a straight edge - correct
1
2
Angular Parallel
1. Straight edge
2. Feeler gauge
Figure 5: Check the alignment using a straight edge - incorrect
In the following Figure, the arrows show the angular misalignment:
Figure 6: Check the alignment using calipers
4 Installation
G&L Pumps Series A-C 9100 Base Mounted Centrifugal Pumps INSTRUCTION MANUAL 17