27-41-07
ALL ú ú 02 Page 406 ú Jan 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
B. Access
(1)
Location Zones
211/212 Control Cabin
311/312 Area Aft of Pressure Bulkhead to BS 1787.45
(2)
Access Panel
311AL Forward Stabilizer Compartment
C.
Install the Brake Pressure Switch (Fig. 401)
S 434-022
(1)
Install a new o-ring and two backup rings on the brake pressure switch.
S 434-023
(2)
Remove the cap from the port on the STCM.
S 424-024
(3)
Install the brake pressure switch and tighten it at the wrench flats as follows:
(a)
Tighten the brake pressure switch at the wrench flats 300 to 350 pound-inches (33.9-39.5 Nm).
S 434-025
(4)
Connect the electrical connector to the brake pressure switch.
S 094-027
(5)
AIRPLANES WITH STAB TRIM LEVERS ON THE CONTROL STAND;
remove rig pins E/ST1 and E/ST2, if they were installed.
S 864-028
(6)
Put the RIGHT and CENTER STAB TRIM SHUTOFF valve switches on the control stand panel, P10, to the NORM position.
S 864-029
(7)
Remove the DO-NOT-CLOSE tags and close these circuit breakers on the overhead panel, P11:
(a)
11B19, STAB TRIM ALT (IF INSTALLED)
(b)
11C12, STAB TRIM SHUTOFF LEFT
(c)
11C13, STAB TRIM SHUTOFF RIGHT
(d)
11H11 or 11C05, STAB TRIM CONT L
(e)
11H20, STAB TRIM CONT R
S 094-031
(8) AIRPLANES WITH STAB TRIM LEVERS ON THE CONTROL STAND; remove the DO-NOT-OPERATE tags from the STAB TRIM levers and from the control wheel switches.
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ALL ú ú 01 Page 407 ú Jan 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
S 094-032
(9)
AIRPLANES WITH ALTERNATE STAB TRIM SWITCHES ON THE CONTROL STAND; remove the DO-NOT-OPERATE tags from the alternate stab trim switches and from the control wheel switches.
S 714-033
(10)
Do the Test of the Stabilizer Trim/Elevator Asymmetry Limit Module (SAM) (FIM 27-09-00).
(a)
Make sure the STCM fault balls do not set during the left and right SAM tests.
NOTE: Do all of the steps as if you replaced the left and
____
right SAMs.
(b)
Make sure there are no hydraulic leaks at the brake pressure switch.
D.
Put the Airplane Back to Its Usual Condition
S 214-034
(1)
Make sure the power is removed from the left, right, and center hydraulic systems (AMM 29-11-00/201).
S 864-035
(2)
Remove electrical power if it is not necessary (AMM 24-22-00/201).
S 414-036
(3)
Close the access door for the forward stabilizer compartment, 311AL (AMM 06-42-00).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-41-07
ALL ú ú 01 Page 408 ú Jan 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
1.
2.
ú ú ú
ú ú ú
ú
757 MAINTENANCE MANUAL
STABILIZER TRIM BALLSCREW ACTUATOR - REMOVAL/INSTALLATION
_________________________________________________________
General
_______
A. This procedure contains steps to remove and install the stabilizer ballscrew actuator.
TASK 27-41-10-024-001Remove the Stabilizer Ballscrew Actuator
________________________________________
A. Equipment
(1)
Removal/Installation Equipment - Horizontal
Stabilizer Jackscrew - B27011-79
B.
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本文链接地址：757 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 4(67)
