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E48999
A
757 FAULT ISOLATION/MAINT MANUAL
OVERHEAD PANEL, P11
FLIGHT COMPARTMENT
324BL TRANSMITTER, M516 RUDDER POSITION SEE A
CONNECTION POINT RUDDER HINGE
SPAR RUDDER FRONT
FWD POSITION TRANSMITTER
Rudder Position Indicating System - Component Location Figure 102 RUDDER POSITION TRANSMITTER, M516 A
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757 MAINTENANCE MANUAL
RUDDER POSITION INDICATING SYSTEM - ADJUSTMENT/TEST
___________________________________________________
1. General_______
A. This procedure contains two tasks. The first task is an operational test and the second task is a system adjustment for the rudder position indicating system.
TASK 27-28-00-715-001
2. Rudder Position Indicating System - Operational Test____________________________________________________
A. References
(1)
24-22-00/201, Electrical Power - Control
(2)
29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems
B.
Access
(1)
Location Zones
211/212 Control Cabin
C.
Prepare for the Test
S 865-002
(1)
Supply electrical power (Ref 24-22-00).
S 215-003
(2)
Make sure these circuit breakers on the overhead panel, P11, are closed:
(a)
EICAS (6 locations)
(b)
11J16, RUDDER POS
D.
Rudder Position Indicating System - Test
S 865-004
(1) Push the STATUS switch on the pilot's display select panel, P9, to show the rudder position indicator on the bottom EICAS display.
S 865-005
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.
(2)
Supply pressure to the left, right, and center hydraulic systems (Ref 29-11-00).
S 825-043
(3)
Turn the rudder trim switch on the aft electronic control panel, P8, until the rudder is in its neutral position. Do this check:
(a)
Make sure the position indicator arrow for the rudder (on EICAS) is on the neutral mark.
NOTE: Use a tolerance of +/- one-half an arrow width.
____
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A
757
MAINTENANCE MANUAL
MIDDLE POWER CONTROL ACTUATOR
SEE C
RUDDER POSITION
TRANSMITTER
SEE A
CONTROL ROD
RUDDER INDEX
PLATE MOUNTING
SEE B BOLTS 10.50 |0.10
POSITION INCHES
TRANSMITTER
ELECTRICAL
CONNECTION
FWD
A A
RUDDER POSITION RUDDER TRANSMITTER
STRAIGHT TRAILING EDGE
CARDBOARD
A
FUSELAGE
"0" DEGREES (NEUTRAL)
RUDDER INDEX PLATE B
RUDDER
TRAILING
EDGE
INDEX PLATE
MIDDLE POWER CONTROL ACTUATOR
A-A
C
Rudder Position Indicating System Adjustment Figure 501 (Sheet 1)
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