TM 10-4610-240-24
TM 08580C-24/2
TO 40W4-13-22
3-9. CENTRIFUGAL PUMP ( RAW WATER 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)
Stiff-Bristled Brush (Appendix B, Section III, Item 4).
Strap Wrench (Appendix B, Section III, Item 3).
Materials/Parts Required
Solvent, drycleaning Solvent (Appendix C, Section II, Item 28)
Detergent (Appendix C, Section II, Item 10).
Gasket- 8988
Equipment Condition
Reference
Centrifugal pump assembly removed (para 2-22).
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
REMOVAL.
a. Remove four screws (20) and lockwashers (21) and separate pump case assembly (14) from motor (1).
DISASSEMBLY.
a.
Remove seal (12), diffuser (11), gasket (6), and dowel pins (15).
b.
Remove screw (10) and washer (9).
c.
Unscrew impeller (8) and remove seal assembly (7) and washer (16). Discard seal assembly.
d. Mark motor and remove four screws (4) lockwashers (3) and separate adapter (5) from motor (1).
e.
Remove screw (19), lockwasher (18), and bracket (17).
f.
Remove priming plug (13).
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