TM 10-4610-241-24
TO 40W4-13-42
3-9.
CENTRIFUGAL PUMP MOTOR (BACKWASH PUMP) REPAIR.
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)
Materials/Parts Required
Grease, GAA (Appendix C, Section II, Item 9)
Lockwashers and Seals
Equipment Condition
Reference
Centrifugal Pump Motor removed (Paragraph 3-8)
General Safety Instructions
WARNING
Drycleaning solvent, P-D-680, C1 II, 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.
a.
Disassembly.
(1)
Remove three screws (1) and fan cover
(2).
(2)
Loosen set screw (3).
CAUTION
Do not apply excessive force. Hub may break.
(3)
Position a flat tip screw driver in split of fan
hub and tap it lightly with a mallet. Split
will enlarge and allow easy removal of hub
from shaft.
(4)
Remove fan (4) and key (5).
NOTE
Marking fan end housing (8), stator (18) and
shaft end plate (11) will facilitate alinement
during assembly. If any marked parts are to
be replaced, be sure to transcribe marks to
replacement parts before discarding defective
parts, or turning them in to Supply.
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