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TM 55-1905-223-24-12
2-17. Service Flexible Shaft Coupling. (FIGURE 2-1)
This task covers:
a. Inspection, b. Service.
Equipment Condition
Tool kit, general mechanic's,
TM 55-1905-223-10, bowthruster diesel
engine shut down and tagged "Out of
Torque wrench (30-300 inch-pound)
Service, Do Not Operate."
Out of service tags, Item 13,
Rags, Item 15, Appendix C
Lubricating grease, Item 3,
0.125 inch spacer bar, Item 12,
Straight edge, Item 14,
Grease gun, Item 15, Appendix C
Shims, Item 18, Appendix C
a. Remove bolts (8) and nuts (7).
b. Remove coupling covers (9) with gasket (6).
c. Inspect bolts (8) and nuts (7) for damaged threads and rounded surfaces on outside diameter of nuts (7)
and bolt (8) heads.
d. Check coupling gap and angular alignment.
Insert spacer bar into gap between coupling hubs to a depth of 1 inch.
Spacer bar should fit into gap with no more than .010 inch clearance.
Perform same check at 90o intervals. If, at any point, clearance between spacer bar and hub
exceeds .010 inch or if spacer bar doesn't fit, adjustment must be made.


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