TM 10-4610-240-24
TM 08580C-24/2
TO 40W4-13-22
3-6. CENTRIFUGAL PUMP MOTOR (BACKWASH PUMP) MAINTENANCE.
This task consists of
a. Disassembly
b. Cleaning
c. Inspection
d. Repair
e. Assembly
f. Test
INITIAL SET-UP:
Tools Required
General Mechanics Tool Kit (Appendix B, Section III, Item 4)
Arbor Press (Appendix B, Section III, Item 3)
Multimeter (Appendix B, Section III, Item 3)
Growler (Appendix B, Section III, Item 3)
Materials/Parts Required
Grease (Appendix C, Section II, Item 15).
Lockwasher (2) - HW1001A25
Equipment Condition
Reference
Centrifugal pump removed (para. 3-5).
General Safety Instructions
WARNING
Drycleaning solvent P-D-680 is highly toxic and can ignite
organic materials, nitrates, carbides, and chlorates Wear eye,
skin, and respiratory protection Use in a well-ventilated area
Compressed air can blow dust into the eyes. Wear eye
protection. Do not exceed 30 psi (207 kPa) air pressure
DISASSEMBLY
Remove three screws (1) and fan cover (2)
Loosen screw 3) and remove fan (4) and key (11) from rotor shaft (12).
NOTE
Mark fan end housing, stator, and shaft end plate to assist in
alinement during assembly
c. Remove four nuts (5) and four bolts (17)
d. Tap fan end housing (6) with soft-faced mallet to break bond with stator assembly (10) and remove fan end
housing
e. Tap shaft end plate (16) with soft-faced mallet to break bond with stator assembly (10) and remove shaft end
plate (16)
f. Remove wavy washer (7) from rotor shaft (12)
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