8. If applicable, adjust clearance to 0.1–0.5 mm (0.004–0.02 in.) between the guide pin
and the impeller.
Replace the impeller for dry installation
Remove the impeller: dry installation
1. Remove the drive unit from the pump housing:
a) Remove the pump housing screws.
Maintenance
52 Flygt 3153 Installation, Operation, and Maintenance Manual