S 496-052
(5)
Install a DO-NOT-OPERATE tag on the flap control lever.
S 866-053
(6)
Open these circuit breakers on the overhead panel, P11, and attach DO-NOT-CLOSE tags:
(a)
11B18, WARN ELEX B
(b)
11D31, HYDRAULICS PTU CONT
(c)
11H23, FLAP/SLAT ALTN DR SHUTOFF ARM
(d)
11J18, FLAP LOAD RELIEF
(e)
11J33, WARN ELEX A
S 866-054
(7)
Open these circuit breakers on the main power distribution panel, P6, and attach DO-NOT-CLOSE tags:
(a)
6D20, ALTN SLAT PWR
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-51-00
ALL ú ú 01 Page 618 ú May 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
(b) 6D23, ALTN FLAP PWR
S 496-055
(8)
Install the PDU lock on the TE flap PDU (Fig. 605).
S 496-056
(9)
Use a clamp on the adjacent torque tubes to prevent all movement (Fig. 605).
E.
Inspect the Drive Shaft U-joints (Fig. 604)
S 226-057
(1)
Do these steps to inspect the drive shaft U-joints:
(a)
The following steps must be completed for each U-joint (4 places).
NOTE: Some drive shaft assemblies have a sealed protective
____ boot installed over each U-joint. No inspection is necessary if the boot is installed and is not damaged.
(b)
Use a caliper or equivalent. At dimension X, pull the upper yoke and lower yoke apart (10-30 pounds)(45-130 newtons) by hand. 1) Measure and record this distance as "A".
(c)
Use a caliper or equivalent. At dimension X, push the upper yoke and lower yoke together (10-30 pounds)(45-130 newtons) by hand. 1) Measure and record this distance as "B".
(d)
If distance "B" subtracted from distance "A" is more than 0.020 inch, replace the U-joint and drive shaft assembly (AMM 27-51-34/401).
(e)
Use a caliper or equivalent. At dimension Y, pull the upper yoke and lower yoke apart (10-30 pounds)(45-130 newtons) by hand. 1) Measure and record this distance as "C".
(f)
Use a caliper or equivalent. At dimension Y, push the upper yoke and lower yoke together (10-30 pounds)(45-130 newtons) by hand. 1) Measure and record this distance as "D".
(g)
If distance "D" subtracted from distance "C" is more than 0.020 inch, replace the U-joint and drive shaft assembly (AMM 27-51-34/401).
F.
Put the Airplane Back to Its Usual Condition
(1)
Remove the clamp from the adjacent torque tube (Fig. 605).
(2)
Remove the PDU lock from the TE flap PDU (Fig. 605).
S 096-058
S 096-059
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-51-00
ALL ú ú 01 Page 619 ú Jan 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
S 866-060
(3) Remove the DO-NOT-CLOSE tags and close these circuit breakers on the overhead panel, P11: (a) 11B18, WARN ELEX B (b) 11D31, HYDRAULICS PTU CONT (c) 11H23, FLAP/SLAT ALTN DR SHUTOFF ARM (d) 11J18, FLAP LOAD RELIEF (e) 11J33, WARN ELEX A
S 866-061
(4) Remove the DO-NOT-CLOSE tags and close these circuit breakers on the main power distribution panel, P6: (a) 6D20, ALTN SLAT PWR (b) 6D23, ALTN FLAP PWR
S 866-062
(5) Supply electrical power (AMM 24-22-00/201).
S 096-063
(6) Remove the DO-NOT-OPERATE tag from the flap control lever.
S 416-064
WARNING: USE THE PROCEDURE IN AMM 32-00-15 TO REMOVE THE DOOR LOCKS.
_______ THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
中國航空網(wǎng) www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：757 AMM 飛機維護手冊 飛行操縱 FLIGHT CONTROLS 4(159)
