b) Tighten the impeller screw.
If applicable, use the rod.
Tightening torque: 30 Nm (22 ft-lb).
Tighten a further 1/8 turn, 45° after tightening to the correct torque.
Check that the impeller can rotate freely.
5. Fit a new lubricated O-ring to the into the groove in the pump housing.
6. Mount the suction cover:
a) Fit the studs on the pump housing.
Use Loctite 603 locking liquid in order to secure the studs.
b) Fit two adjustment washers with a thickness of 1 mm (0.04 in) and six adjustment
washers with a thickness of 0.25 mm (0.01 in) onto each stud.
6 Maintenance
52 Flygt 3085 Installation, Operation, and Maintenance Manual
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