D.
Remove the Fuses
S 022-025
(1)
Do the steps that follow to remove the fuse:
(a)
Remove the clamps from the hydraulic lines to let the lines move during the fuse removal.
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(b)
Remove the fuses from the hydraulic lines (2 locations).
(c)
Put caps on the hydraulic lines.
TASK 27-23-51-402-026
5. Elevator Hydraulic Fuses - Installation_______________________________________
A. Consumable Material
(1)
D00153 Hydraulic Fluid - BMS 3-11
B.
References
(1)
06-42-00/201, Empennage Access Doors and Panels
(2)
24-22-00/201, Electrical Power - Control
(3)
29-11-00/201, Main (Left, Right and Center) Hydraulic Systems
(4)
31-41-00/201, EICAS
C.
Access
(1)
Location Zones 211/212 Control Cabin 312 Area Aft of Pressure Bulkhead BS 1787.45 313/314 Stabilizer Center Section Compartment
(2)
Access Panels
311AL Elevator Hydraulic Fuses
313AL Elevator Hydraulic fuses
D.
Install the Fuses
S 422-027
(1)
Do the steps that follow to install the fuses:
(a)
Remove the caps from the hydraulic lines.
(b)
Apply a thin layer of hydraulic fluid to the fittings before installation.
(c)
Make sure the fuse directions are correct.
(d)
Install the fuses to the hydraulic lines (2 locations).
(e)
Install the clamps for the hydraulic lines.
E.
Test the Elevator Hydraulic Fuse
(1)
Suply electrical power (Ref 24-22-00/201).
S 862-029
(2)
Make sure these circuit breakers on the overhead panel, P11, are closed:
(a)
EICAS (6 locations)
(b)
11H18, FLT EONT SHUTOFF TAIL CTR
(c)
11K09, LEFT ENG OIL PRESS
(d)
11K35, RIGHT ENG OIL PRESS
S 862-028
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S 862-030
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.
(3)
Supply pressure to the center hydraulic system (Ref 29-11-00/201).
S 712-031
(4)
Do these steps to do a test for the hydraulic fuses in the elevator system:
(a)
Make sure the FLT CONTROL SHUTOFF TAIL CENTER switch on the right side panel, P61, is at the ON position.
(b)
Move the control columns through full travel ten times, then let the control columns go to their neutral position.
(c)
Make sure there are no leaks near the hydraulic fuses.
(d)
Make sure the elevators move correctly with the control column movement.
F.
Put the Airplane Back to Its Usual Condition
S 862-032
(1)
Remove the pressure from the center hydraulic system (Ref
29-11-00/201).
S 862-033
(2)
Remove the electrical power if it is not necessary (Ref
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