4. Tighten the impeller screw.
If applicable, use the rod.
Tightening torque: 65 Nm (48 ft-lbs)
Tighten a further 1/8 turn, 45° after tightening to the correct torque.
Check that the impeller can rotate freely.
5. Mount the pump housing:
a) Fit a new lubricated O-ring into the pump housing.
b) Fit the pump housing.
c) Fit and tighten the lubricated screws.
Tightening torque: 57 Nm (42 ft-lb).
6 Maintenance
60 Flygt 3102 Installation, Operation, and Maintenance Manual