1, Impeller, pump shaft and internal volute/casing can now be inspected for erosion, pitting and wear.
2, If required rectify pitting or erosion in the impeller and casing with two-part alloy epoxy putty.
3, Check main drive shaft bearings and thrust bearings for wear and replace if required.
4, Check wear ring clearance using feeler gauges.
5, Check impeller/shaft key and keyways for damage and undue wear, unscrew impeller shaft securing nut and check threads are in satisfactory condition retighten to manufacturers torque settings.
6, Give all parts a good clean removing any dirt/medium residue before reassembly using new parts as required.
7, Enter date of overhaul and parts renewed in the pump maintenance record card.
