3-10. CENTRIFUGAL PUMP MOTOR( RAW WATER PUMP) MAINTENANCE - continued.
a. Remove two screws (5) and conduit box cover (6) and gasket (7), as required
b. Remove two screws (4) and conduit box (8), as required.
c. Remove four screws (3) and fan cover (1).
d. Loosen set screw (20) and remove fan (2) from shaft of rotor (12).
Mark fan end plate, motor casing, and pump end plate to assist in
alinement during assembly.
Remove four through-bolts (19)
f. Remove two screws (16).
g. Tap pump end plate (15) with soft-faced mallet to break bond with stator assembly (17) and remove pump
end plate (15).
Stator wiring inside motor casing can be damaged by rotor or shaft if
rotor is not removed carefully.
Remove rotor (12) from stator assembly (17)
Pull bearing (14) from shaft of rotor (12).
Remove bearing retainer (13).
Tap fan end plate (18) with soft-faced mallet to break bond with stator assembly (17) and remove fan end plate.
Remove flat washer (10) and wavy washer (9) from shaft of rotor (12).
Using arbor press, remove bearing (11) from shaft of rotor (12)
Compressed air can blow dust into the eyes. Wear eye protection
Do not exceed 30 psi /(207 kPa) air pressure.
a. Scrape loose paint from stator assembly (17) and fan cover (18).
b. Using compressed air, blow dust and grit from stator and rotor assemblies Wipe rotor assembly (12) with