CENTRIFUGAL PUMP MOTOR ( RAW WATER PUMP) REPAIR - continued.
Scrape loose paint from stator assembly (20), fan cover (7) and end plates ( (11 and 15).
Compressed air can blow dust into the eyes. Wear eye protection. Do
not exceed 30 psi /(207 kPa) air pressure.
Using compressed air, blow dust and grit from stator (20) and rotor assemblies (19). Wipe rotor
assembly with clean rag.
Clean vent slots of fan cover (7) with compressed air and wipe with clean rag.
Wipe bearings (16 and 17) with clean rag.
Inspect leads and windings of stator assembly (20) for evidence of cracked or burned insulation.
Inspect rotor assembly (19) for loose or burned conducting bars.
Inspect bearings (16 and 17) for freedom of rotation and worn/damaged seals.
Inspect end plates (11 and 15) for cracks.
Replace damaged components.
Position bearing retaining plate (18) on shaft of rotor (19) and, using arbor press, install bearings (16 and
Wiring inside stator assembly can be damaged by rotor or shaft if rotor
is not installed carefully.
Position rotor (19) in stator assembly (20).
Position pump end plate (15) on shaft of rotor (19) and aline holes in retaining plate (18) with mounting
holes in end plate.
Install screws (14)
Install flat washer (13) and wavy washer (12) on shaft of rotor (19).
Position fan end plate (11) on shaft of rotor (19).