(a)
B27023-48 (Elevator is at Neutral)
(b)
B27023-49 (Elevator at 5 Degrees UP).
(9)
Test Box, Rudder/Elevator PCU Monitor System - B27061-1
NOTE: If the test box is not available, you can use three 750-ohm,
____ 10-watt resistors as a replacement to the test box.
(10)
Pogo Compression/Extension Tool - B27032-9, (3 Necessary)
(11)
Surface Protractor - Commercially Available
(12)
Test Box, Elevator Control System Hardover -B27071-34, - Preferred
(13)
Tee Fitting - NAS1763J060606 (or equivalent steel or titanium fitting)
(14)
Pressure Gage - Capable of 4000 +/- 50 psi (25,600 +/- 350 kPa)
(commercially available)References
(1)
AMM 06-42-00/201, Empennage Access Doors and Panels
(2)
AMM 22-00-02/201, Autoflight BITE
(3)
AMM 24-22-00/201, Electrical Power - Control
(4)
AMM 27-31-15/401, Elevator Aft Quadrants
(5)
AMM 29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems
(6)
FIM 31-41-00/101, EICAS Indicating and Crew Alerting System
(7)
AMM 34-11-00/201, Pitot Static SystemAccess
(1)
Location Zones 211/212 Control Cabin 311/312 Area Aft of Pressure Bulkhead to BS 1787.45 336/346 Elevator 710 Nose Landing Gear and doors 730 Left Main Landing Gear and Landing Gear Doors 740 Right Main Landing Gear and Landing Gear Doors
(2)
Access Panels 311AL Forward Stabilizer Compartment 313AL Aft Stabilizer Compartment
Prepare for the Tests
S 865-342
(1)
Supply electrical power (AMM 24-22-00/201).
S 215-348
(2)
Make sure that these circuit breakers on the overhead panel, P11, are closed:
(a)
EICAS (6 locations)
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(b)
11C12, STAB TRIM SHUTOFF LEFT
(c)
11C13, STAB TRIM SHUTOFF RIGHT
(d)
11H17, FLT CONT SHUTOFF TAIL LEFT
(e)
11H18, FLT CONT SHUTOFF TAIL CTR
(f)
11H28, FLT CONT SHUTOFF TAIL RIGHT
(g)
11K9, LEFT ENGINE OIL PRESS
(h)
11K35, RIGHT ENGINE OIL PRESS
S 015-350
WARNING: STAY OFF THE SERVICE ACCESS DOOR, 311AL, AND THE ACCESS DOOR
_______ FOR THE CONTROLS BAY, 313AL. YOUR WEIGHT CAN CAUSE THE SPRING-LOADED LATCHES TO RELEASE. IF YOU FALL THROUGH THE DOOR, INJURY CAN OCCUR.
(3)
Open the access door for the forward stabilizer compartment, 311AL (AMM 06-42-00/201).
S 215-343
(4)
Make sure that the L, R, and C FLT CONTROL SHUTOFF switches on the right side panel, P61, are at the ON position.
S 215-344
(5)
Make sure that the RIGHT and CENTER STAB TRIM SHUTOFF valve switches on the control stand panel, P10, are at the NORM position.
S 865-345
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. INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR WHEN HYDRAULIC POWER IS SUPPLIED.
(6)
Pressurize the left, right and center hydraulic systems (AMM 29-11-00/201).
S 865-346
(7)
Move the horizontal stabilizer until Dimension B on the stabilizer ballscrew actuator is 15.89 | 0.01 inches
(403.6 | 0.3 mm) (Fig. 502).
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A
757 MAINTENANCE MANUAL
S 865-347
(8)
Put the RIGHT and CENTER STAB TRIM SHUTOFF valve switches on the P10 panel to the CUTOUT position.
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