Figure 15: Coupler
1. Set screw collar ring
2. Motor shaft
3. Tapered washer
4. Pump shaft with attached impeller (not shown)
5. Taper washer cap screw and lock washer
6. Coupler half
7. Coupler half
8. Insert the coupler cap screws and place a lock washer and nut on each screw. The bolt
heads at each level on opposite sides of the coupling should face in different
directions for balance as shown in the Figure below.
9. Tighten all of the bolts evenly to avoid mis-alignment. The shaft and impeller are
pulled up in to position as the bolts are tightened. Then rotate the shaft by hand and
make sure the gap on both sides of the coupler is approximately equal. Make sure the
gap from the top to the bottom of the coupler is even. If the gap is not equal, loosen
the bolts and repeat the tightening step.
10.Slowly rotate the shaft by hand and check to see if any rubs occur.
1. If no rubs occur, prime and start the pump run for two minutes and determine if the
pump run smooth and vibration free.
2. If problems occur, check the installation and repeat as necessary.
6 Maintenance
24 Series e-80SC INSTRUCTION MANUAL
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