EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH STAB TRIM LEVERS ON THE ú
27-41-02
CONTROL STAND ú ú 02 Page 402 ú Dec 20/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
APL NOSE DOWN
APL NOSE DOWN
INDEX MARKS - LIMIT POSITION DECAL (2)
NORM
CUT
OUT
CR
STAB TRIM
KNOB
SCREW
KNOB
LEFT STAB
SCREW
TRIM LEVER
NUT
RIGHT STAB TRIM LEVER
WASHER
SHAFT ASSEMBLY
SPACER
BEARING BEARING
RETAINER BRIDGEDRUM BOLTBEARING
LEVER ASSEMBLY B
Stabilizer Trim Levers Installation Figure 401 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH STAB TRIM LEVERS ON THE ú
27-41-02
CONTROL STAND ú ú 02 Page 403 ú Jan 20/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
S 014-004
WARNING: STAY OFF THE SERVICE ACCESS DOOR, 311AL AND THE ELEVATOR
_______ CONTROL ACCESS DOOR, 313AL. YOUR WEIGHT CAN RELEASE THE SPRING-LOADED LATCHES ON THE DOOR. IF YOU FALL THROUGH THE DOOR, INJURIES CAN OCCUR.
(3) Open the access door for the forward stabilizer compartment, 311AL (AMM 06-42-00/201).
S 864-005
CAUTION:_______DO NOT MOVE THE STABILIZER WITH THE RIG PINS INSTALLED. DAMAGE TO THE AIRPLANE STRUCTURE CAN OCCUR.
(4)
Use the control wheel switches to move the stabilizer until you can install rig pins E/ST1 and E/ST2 in the aft quadrants (approximately 4 units of trim).
S 864-006
(5)
Remove the pressure from the right and center hydraulic systems (AMM 29-11-00/201).
S 864-007
(6)
Put the RIGHT and CENTER STAB TRIM SHUTOFF valve switches on the control stand panel, P10, to the CUTOUT position.
S 864-008
(7)
Open these circuit breakers on the overhead panel, P11, and attach DO-NOT-CLOSE tags:
(a)
11C12, STAB TRIM SHUTOFF LEFT
(b)
11C13, STAB TRIM SHUTOFF RIGHT
E.
Remove the STAB TRIM Levers (Fig. 401)
S 014-009
(1)
Open the door for the forward cargo compartment.
S 034-010
(2)
Find the turnbuckles in cables ST1A and ST1B and do the step that follows:
(a)
Put identification tags on the cable sections that are connected to each turnbuckle and remove the turnbuckle.
NOTE: The tags are to identify which cables are to be
____ connected together during subsequent installation.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH STAB TRIM LEVERS ON THE ú
27-41-02
CONTROL STAND ú ú 02 Page 404 ú May 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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757 MAINTENANCE MANUAL
S 034-011
(3)
Remove the knobs from the STAB TRIM levers.
S 034-012
(4)
Remove the left seal assembly from the top of the control stand.
S 034-013
(5)
Remove the left Electronic Flight Instrument System (EFIS) control panel (Ref 34-22-02).
S 034-014
(6)
Remove the nut, washer, bushing and bolt that connect the right STAB TRIM lever to the link assembly.
S 034-015
(7)
Remove cable ST1A from the drum of the lever assembly.
S 034-016
(8)
Hold the lever assembly and remove the three bolts that hold the shaft assembly to the control stand.
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