(3)  
Do this task: "Supply Electrical Power" (AMM 24-22-00/201).

 S 862-204

 (4)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:

 (a)  
P6 Main Power Distribution Panel
 1) 6L21 LE FLAP ELEC CONT GRP B DRIVE 1
 2) 6L22 LE FLAP ELEC CONT GRP A DRIVE 2

 S 862-203
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-81-03
 ALL  ú ú 04 Page 252 ú Oct 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 3) 6L23 LE FLAP ELEC CONT GRP A DRIVE 3
 4) 6L24 LE FLAP ELEC CONT GRP A DRIVE 4
 5) 6E3 PRIM LE FLAP CONT GRP A AC
 6) 6E4 PRIM LE FLAP CONT GRP A DC
 7) 6E5 PRIM LE FLAP CONT GRP B AC
 8) 6E6 PRIM LE FLAP CONT GRP B DC

 (b)  
P7 Overhead Circuit Breaker Panel
 1) 7C10 FLT CONT ELEC 2L-AC
 2) 7C11 FLT CONT ELEC 2L-DC
 3) 7C12 FLT CONT ELEC 1L-AC
 4) 7C13 FLT CONT ELEC 1L-DC
 5) 7C14 FLT CONT ELEC 1R-AC
 6) 7C15 FLT CONT ELEC 1R-DC
 7) 7C16 FLT CONT ELEC 2R-AC
 8) 7C17 FLT CONT ELEC 2R-DC

 (c)  
P414 Power Distribution Center - Left
 1) 414A5 LE FLAP ELEC DRIVE 1
 2) 414A2 LE FLAP ELEC DRIVE 4

 (d)  
P415 Power Distribution Center - Right
 1) 415M35 LE FLAP ELEC DRIVE 2
 2) 415B32 LE FLAP ELEC DRIVE 3

 S 862-205
 WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE LE AND TE
_______ FLAPS AND FLAP DRIVE MECHANISMS BEFORE YOU MOVE THE FLAP CONTROL LEVER. WITH HYDRAULIC POWER REMOVED, THE FLAPS WILL MOVE AUTOMATICALLY BY ELECTRICAL POWER WHEN YOU MOVE THE FLAP CONTROL LEVER. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (5)  
Make sure the flap control lever is in the 5 unit detent minimum and in the same position as the trailing edge flaps.

 (6)  
Do this task: "Supply Pneumatic Power" (AMM 36-00-00/201).

 S 862-207

 (7)  
Do this task to pressurize hydraulic systems No. 1 and 4: "Hydraulic System Pressurization" (AMM 29-11-00/201).

 S 862-206
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-81-03
 ALL  ú ú 04 Page 253 ú Jun 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 712-208
 WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE TRAILING
_______ EDGE AND THE LEADING EDGE FLAPS. THE TRAILING EDGE AND THE LEADING EDGE FLAPS WITH THE POWER DRIVE UNIT CONNECTED WILL MOVE. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (8)  
Move the flap control lever from the full UP detent to the 5 unit detent to operate the PDU and the LE flaps.

 (a)  
Make sure that the LE flaps extend fully.

 S 712-209
 (9)  
Move the flap control lever to the full UP detent.

 (a)  
Make sure that the LE flaps retract fully after the TE flaps are retracted.

 E.
Put the Airplane Back to Its Usual Condition

 S 862-210
 (1)  
Do this task if hydraulic power is not necessary for hydraulic systems No. 1 and 4: "Hydraulic Power Depressurization" (AMM 29-11-00/201).

 S 862-211

 (2)  
Do this task if pneumatic power is not necessary: "Pneumatic Power Removal" (AMM 36-00-00/201).

 S 862-212

 (3)  
Do this task if electrical power is not necessary: "Electrical Power Removal" (AMM 24-22-00/201).

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-81-03
 ALL  ú ú 05 Page 254 ú Jun 18/00
　
中國(guó)航空網(wǎng) www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機(jī)維護(hù)手冊(cè) 飛行操縱 FLIGHT CONTROLS 7(121)