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 TM 55-1905-223-24-18-2
This task covers:
a. Disassembly
b. Repair
c. Assembly
INITIAL SETUP :
Tools
Equipment Condition
Tool kit, general mechanic's,
Main engine shut down. Refer to
TM 55-1905-223-10.
Control air and starting air valves to
Materials/Parts
main engine closed (TM 55-1905-223-
24-10) and tagged "Out of Service -
Brake element P/N 145821HA
Do Not Operate."
Safety release valve P/N P52935-3
Friction shoe assemblies P/N 406165
General Safety Instructions
Flat springs P/N 301832
Brake drum P/N 2221-1
Rubber actuating butt end tubes
WARNING
P/N 412594
Warning tags, Item 1, Appendix C
Ensure control air and starting air
Medium grit sandpaper, Item 9,
valves to main engine are closed prior
to maintenance. Escaping air pressure
Block wood, Item 10, Appendix C
can cause injury to eyes.
CAUTION
Never replace friction shoe assemblies
individually.
If one lining is bad,
replace all linings to ensure correct
operation.
DISASSEMBLY
WARNING
Ensure starting and control air valves to main engines are
closed (TM 55-1905-223-24-1O) and tagged "Out of Service -
Do Not Operate." Brake element support brackets must be
removed, and shaft supported with a sling in accordance with
a. Remove brake element side plate.
(1) Mark side plate (7, Figure 3-191) and brake element rim (9) to ensure assembly in same
position.
3-648
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