5. Mount the strainer and the screws.
Tightening torque: 9.3 Nm (6.9 ft-lb)
6.4.4 Install the impeller, sludge version
1. Prepare the shaft. Polish off any flaws with a fine emery cloth.
The end of the shaft must be clean and free from burrs.
2. Check that the impeller screw is clean and easy to screw into the shaft end.
This is to prevent the shaft from rotating with the impeller screw.
3. Fasten the impeller:
a) Place the washer on the impeller screw.
b) Mount the impeller.
Make sure that the impeller hub disk center is aligned with the slotted shaft end.
6 Maintenance
26 2008 Ready 8, 8S Installation, Operation, and Maintenance
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