27-02-00
ALL ú ú 01 Page 618 ú Jan 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
S 866-118
(5)
Do the deactivation procedure for the flaps (Ref 27-51-00/201).
S 866-115
(6)
Move the speedbrake lever to its down-and-locked detent position.
S 866-072
(7)
Make sure the control wheels are in their neutral positions.
NOTE: The neutral position is found when the control wheels are in
____ their center positions with zero units of trim. Make sure you can easily install and remove rig pin A1 in the lateral control feel, centering, and trim mechanism.
S 866-084
WARNING: MAKE SURE THE SPOILERS ARE IN THEIR DOWN POSITIONS BEFORE YOU
_______ OPEN THE CIRCUIT BREAKERS SHOWN BELOW. THE SPOILERS WILL RETRACT IN LESS THAN ONE SECOND AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(8)
Open these circuit breakers on the overhead panel, P11, and attach DO-NOT-CLOSE tags:
(a)
11C6, CSEU 1L AC or FLT CONT ELEC 1L AC
(b)
11C7, CSEU 1L DC or FLT CONT ELEC 1L DC
(c)
11C8, CSEU 2L AC or FLT CONT ELEC 2L AC
(d)
11C9, CSEU 2L DC or FLT CONT ELEC 2L DC
(e)
11G17, CSEU 1R AC or FLT CONT ELEC 1R AC
(f)
11G18, CSEU 1R DC or FLT CONT ELEC 1R DC
(g)
11G27, CSEU 2R AC or FLT CONT ELEC 2R AC
(h)
11G28, CSEU 2R DC or FLT CONT ELEC 2R DC
E.
Spoiler Freeplay - Check
S 226-063
CAUTION: USE SUFFICIENT PADDING ON THE FORCE SCALE TO PREVENT DAMAGE TO
_______ THE SPOILER SURFACE. USE A PAD THAT IS AT LEAST 5 INCHES
(12.7 cm) LONG AND HAS A WIDTH OF AT LEAST 5 INCHES (12.7 cm).
(1) Use the force scale to apply a 10-12 pound force (44.5-53.4 newtons) to the bottom of the spoiler. Apply this force opposite the PCA and 1 to 2 inches (25.4-50.8 mm) forward of the spoiler trailing edge.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-02-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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 496-094
CAUTION: USE A DIAL INDICATOR WITH AT LEAST A 1-INCH STROKE TO PREVENT
_______
DAMAGE TO THE INDICATOR.
(2)
Do the steps that follow to attach the dial indicator to the top wing structure forward of the spoiler.
(a)
Use tape to attach the "T" beam to the top wing structure forward of the spoiler.
NOTE: The "T" beam can be attached to the top surface of
____ the flaps if the flaps are in the extended position.
(b)
Use adjustable rods to attach the dial indicator to the flange of the "T" beam.
(c)
Put the indicator plunger at the spoiler trailing edge.
(d)
Make sure the dial indicator cannot move.
(e)
Adjust the dial indicator to zero.
S 866-085
(3)
Remove the force from the bottom of the spoiler.
S 226-076
(4)
Use the force scale and apply a 10-12 pound force
(44.5-53.4 newtons) to the top of the spoiler.
S 226-086
(5)
Measure and keep a record of the distance the spoiler moves. Do this check:
(a)
Make sure that the spoiler freeplay (movement) is not more than
0.20 inch (5.1 mm).
S 226-087
(6)
If the spoiler freeplay is more than 0.20 inch (5.1 mm), examine these components for too much wear:
(a)
The actuator rod end bearing, bolt, and bushing
(b)
The actuator trunnion pivot joint components
(c)
The spoiler hinge bearing, bolt, and bushing.
S 226-078
(7)
Do the above steps again for each of the twelve spoiler panels.
F.
Put the Airplane Back to Its Usual Condition
S 866-079
(1)
Remove the DO-NOT-CLOSE tags and close these circuit breakers on the P11 panel:
(a)
11C6, CSEU 1L AC or FLT CONT ELEC 1L AC
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：757 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 1(33)
