(10)
Move the captain's stabilizer-trim control-wheel-switches up (airplane nose down) and do the check that follows:
(a)
Measure the time necessary for the stabilizer to go to the airplane nose down electrical-trim-stop (stabilizer leading edge up). 1) Make sure that the time is less than 54 seconds.
S 865-424
CAUTION: HOLD THE AIR SUPPLY PRESSURE TO THE AIRPLANE TO AN ABSOLUTE
_______ LIMIT OF 4.75 PSI (426 KNOTS). PRESSURE IS TO BE CHANGED AT A RATE OF NOT MORE THAN 2 PSI/MIN. THIS WILL PREVENT DAMAGE TO EQUIPMENT AND INJURY TO PERSONS.
(11) Pressurize the auxiliary pitot lines (lower left and lower right) to
4.23 | 0.10 psi (405 | 5 knots) (Ref 34-11-00).
NOTE: Use airspeed values only when the static pressure on the
____ airspeed indicator is open to ambient pressure.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-41-00
ALL ú ú 02 Page 580E ú Jan 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
S 865-425
(12)
Extend the trailing edge flaps to the 15-unit detent (Ref 27-51-00).
S 865-426
(13)
Move the captain's stabilizer-trim control-wheel-switches up (airplane nose down) and hold until the stabilizer stops.
S 225-427
(14)
Measure and write down dimension B of the stabilizer jackscrew.
S 865-428
(15)
Move the captain's stabilizer-trim control-wheel-switches down (airplane nose up) and hold for 25 seconds.
S 225-429
(16)
Measure and write down dimension B of the stabilizer jackscrew.
S 225-430
(17)
Calculate the difference of the above two written measurements.
(a)
Make sure that the difference is between 3.84 and 5.00 inches (97.5-127.0 mm).
S 865-430
(18)
Move the captain's stabilizer-trim control-wheel-switches down (airplane nose up) and hold until the stabilizer stops.
S 225-431
(19)
Measure and write down dimension B of the stabilizer jackscrew.
S 865-432
(20)
Move the captain's stabilizer-trim control-wheel-switches up (airplane nose down) and hold for 29 seconds.
(21)
Measure and write down dimension B of the stabilizer jackscrew.
S 225-433
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-41-00
ALL ú ú 02 Page 580F ú Jan 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
S 225-434
(22)
Calculate the difference in the above two measurements.
(a)
Make sure that the difference is between 9.41 and 11.99 inches (239.0-304.5 mm).
S 865-435
(23)
Put the RIGHT STAB TRIM SHUTOFF switch on the P10 panel to NORM.
S 865-436
(24)
Put the CENTER STAB TRIM SHUTOFF switch on the P10 panel to CUTOUT.
S 865-437
(25)
Move the captain's stabilizer-trim control-wheel-switches up (airplane nose down) and hold until the stabilizer stops.
S 865-B16
(26)
Measure and write down dimension B of the stabilizer jackscrew.
S 865-438
(27)
Move the captain's stabilizer-trim control-wheel-switches down (airplane nose up) and hold for 25 seconds.
S 225-439
(28)
Measure and write down dimension B of the stabilizer jackscrew.
S 225-440
(29)
Calculate the difference in the above two measurements.
(a)
Make sure that the difference is between 3.84 and 5.00 inches (97.5-127.0 mm).
S 865-441
(30)
Move the captain's stabilizer-trim control-wheel-switches down (airplane nose up) and hold until the stabilizer stops.
(31)
Measure and write down dimension B of the stabilizer jackscrew.
S 865-443
(32)
Move the captain's stabilizer-trim control-wheel-switches up (airplane nose down) and hold for 29 seconds.
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 4(40)
