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TM 55-1905-223-24-18-2
Replace/Repair Steering Control Panel (Figure 3-102.1)
This task covers:
a. Removal,
b. Disassembly,
c. Repair,
d. Assembly,
e. Replacement
Equipment Condition
Tool kit, electricians
Power to steering control
panel secured and tagged
"Out of Service Do Not
(TM 55-1905-223-10)
Steering control panel, P/N 9999-40710
Printed circuit board, P/N 9999-40720
Transistor & heat sink unit, P/N 9999-40790
Diode, P/N IN4001
Steering control P.C.B., P/N 9999-21609
Knob, P/N 515D
Potentiometer, P/N 53C35K
Pushbutton switch, P/N 7040102R
Pushbutton switch, P/N 7040102G
Contact block, P/N 704-9005 (2)
Rotary switch, P/N 21310A
Rotary switch, P/N 21308A
1 R'Rudder order meter, P/N 71111R-24V
Pushbutton switch, P/N 82610
Indicator light, P/N 386L (6)
Warning tags, Item 1, Appendix C
a. Remove four screws (4) securing panel (3) to pilothouse control console.
b. Lift panel up and out of console until electrical leads are accessible.
c.  Tag and disconnect leads to the rudder order meter (10), Pushbutton switches (9, 11, and 13), rotary
switches (8, 17), and potentiometer (15).
a. Remove mounting hardware and remove rudder order meter (10).
b. Remove lamps (5).
c.  Remove knob (7), mounting screws (6) and the eight layer rotary switch (8).
d. Remove pushbutton switch (9).
Change 6


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