GE OSMONICS TONKAFLO SS1000 SERIES Installation, Operation And Maintenance Manual page 26

8. Install the retaining ring into the shaft groove with the sharp edges away from
the motor.
9. Install the liquid end assembly onto the pump shaft. Do not force it in. Rotate
and place the liquid end onto the mechanical seal holder until seated against
motor adapter.
10. Install the four (4) 5/16-inch lock washers and bolts to hold the liquid end onto
the motor adapter and tighten.
11. Reinstall the pump (Section 3.0, Pump Installation).
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