(1)
Location Zones
211/212 Control Cabin
312 Area Aft of Pressure Bulkhead to BS 1787.45
(2)
Access Panel
311AL Rudder Hydraulic Fuse
D.
Install the Fuse
S 022-007
(1)
Remove the caps from the hydraulic lines.
S 642-008
(2)
Apply a thin layer of hydraulic fluid to the fittings before installation.
S 432-009
(3)
Make sure the fuse direction is correct and connect the fuse to the hydraulic lines at each end.
S 432-010
(4)
Install the clamps for the hydraulic line.
E.
Test the Fuse
S 862-011
(1)
Supply electrical power (Ref 24-22-00/201).
S 862-012
(2)
Make sure these circuit breakers on the overhead panel, P11 are closed:
(a)
EICAS (6 locations)
(b)
11K09, LEFT ENG OIL PRESS
(c)
11K35, RIGHT ENG OIL PRESS
S 862-013
(3) Push the STATUS switch on the display select panel, P9, to show the rudder position indicator on the bottom EICAS display.
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27-23-51
ALL ú ú 02 Page 202 ú May 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
S 862-014
(4)
Make sure these circuit breakers on the overhead panel, P11, are closed:
(a)
11H17, FLT CONT SHUTOFF TAIL LEFT
(b)
11H18, FLT CONT SHUTOFF TAIL CTR
(c)
11H28, FLT CONT SHUTOFF TAIL RIGHT
S 862-015
WARNING: KEEP PERSONS AND EQUIPMENT AWAY FROM ALL CONTROL SURFACES WHEN
_______ HYDRAULIC POWER IS SUPPLIED. AILERONS, ELEVATORS, RUDDER, FLAPS, SLATS, SPOILERS, AND STABILIZER ARE FULLY POWERED SURFACES. INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR WHEN HYDRAULIC POWER IS SUPPLIED.
(5)
Supply pressure to the center hydraulic system (Ref 29-11-00/201).
S 212-016
(6)
Make sure the FLT CONTROL SHUTOFF TAIL CENTER switch on the right side panel, P61, is ON.
S 212-018
(7)
Operate the rudder pedals through their full travel range ten times and do these checks:
(a)
Make sure the rudder moves through its full travel range.
(b)
Make sure there are no leaks near the hydraulic fuse.
(c)
Make sure the rudder moves correctly with rudder pedal movement.
F.
Put the Airplane Back To Its Usual Condition
S 862-019
(1)
Put the rudder pedals to their neutral position.
S 862-020
(2)
Remove the power from the center hydraulic system (Ref
29-11-00/201).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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ALL ú ú 02 Page 203 ú Sep 20/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
S 862-021
(3)
Remove the electrical power if it is not necessary (Ref 24-22-00/201).
S 412-037
(4)
Close the 311AL and any other access door open (AMM 06-42-00/201, AMM 52-48-07/401).
TASK 27-23-51-002-022
4. Elevator Hydraulic Fuses - Removal__________________________________
A. References
(1)
06-42-00/201, Empennage Access Doors and Panels
(2)
29-11-00/201, Main (Left, Right and Center) Hydraulic Systems
B.
Access
(1)
Location Zones 211/212 Control Cabin 312 Area Aft of Pressure Bulkhead to BS 1787.45 313/314 Stabilizer Center Section Compartment
(2)
Access Panels
311AL Elevator Hydraulic Fuses
313AL Elevator Hydraulic Fuses
C.
Prepare for the Removal
S 862-023
(1) Remove the pressure from the center hydraulic system and its reservoir (Ref 29-11-00/201).
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