747-400 AMM 飞机维护手册 EXHAUST 2(115)

 S 032-005-N00

 (2)  
Loosen the fasteners on the base of the relay.

 S 962-006-N00

 (3)  
Replace the relay and tighten the fasteners.

 E.
Replace or Repair a Relay Socket

 S 962-007-N00
 (1)  
For relay sockets BACS16X (8 Contacts), refer to the Standard Wiring Practices Manual (SWPM 20-81-12) for replacement and repair information.

 S 962-008-N00

 (2)  
For relay sockets BACS16AG (14 Contacts), refer to the Standard Wiring Practices Manual (SWPM 20-81-19) for replacement and repair information.

 F.
Replace a Diode

 S 942-009-N00
 (1)  
The block type diodes are installed in a mount rail on the underside of the relay panel.

 S 972-010-N00

 (2)
Make a note of the track location numbers for the three diodes.

 S 962-011-N00

 (3)  
For diode replacement, refer to the Standard Wiring Practices Manual (SWPM 20-90-11) for replacement information.

 G.
Replace the Time Delay

 S 942-012-N00
 (1)
The time delay is mounted on the underside of the relay panel.

 (2)  
Loosen the fasteners on the base of the time delay.

 (3)  
Replace the time delay and tighten the fasteners.

 S 032-013-N00
 S 962-014-N00
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H. Put the Airplane Back to Its Usual Condition
 S 412-015-N00
 (1)  
Close the panel door and turn the 1/4-turn fasteners to lock the latches.

 S 862-016-N00

 (2)  
Remove the DO-NOT-CLOSE tags and close the following circuit breakers:

 (a)  P6 Main Power Distribution Panel
 1) 6F13, T/R CONT ENG 1
 2) 6E13, T/R CONT ENG 2
 3) 6D13, T/R CONT ENG 3
 4) 6C13, T/R CONT ENG 4
 5) 6F12, T/R IND ENG 1
 6) 6E12, T/R IND ENG 2
 7) 6D12, T/R IND ENG 3
 8) 6C12, T/R IND ENG 4
 9) 6F11 ENG 1 T/R LOCK CONT
 10) 6E11 ENG 2 T/R LOCK CONT
 11) 6D11 ENG 3 T/R LOCK CONT
 12) 6C11 ENG 4 T/R LOCK CONT

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.