22-12-01
ALL ú ú 12 Page 409 ú Mar 20/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
S 434-036
(2)
Use the bolt (4), the washer (5), and the nut (6) to connect the servo control rod assembly (7).
S 434-037
(3)
Tighten the control rod (7) jamnut.
S 084-038
(4)
Remove the rig pin E/ST 7.
S 714-039
(5)
Do the "Test the Autopilot Pitch Control Servo Installation" steps.
TASK 22-12-01-824-040
6. Adjust the Autopilot Pitch Control Servo with the Model 101A Phase
__________________________________________________________________ Synchronous Voltmeter
_____________________
A. Equipment
(1)
Rig Pin E/ST 7 - P/N B20003-21 from set B20003-XX (Ref 20-10-24)
(2)
Voltmeter, Phase Synchronous Model 101A Kit - 101AC5, Electronic Aviation systems 300 Airport Way Renton, WA 98005
(a)
Voltmeter, Phase Synchronous
(b)
Adapter Cable Assembly 1014002 -5
B. Parts
~.............................................................................. | MM | | IPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................
| 401 | 4 | Bolt | 27-31-53| 01 | 95 |
| | 5 | Washer | | | 97 |
| | 6 | Nut | | | 99 |
| | 7 | Rod Assembly | | | 101 |
2......…........…...................................…..........…......…........1
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22-12-01
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A
757
MAINTENANCE MANUAL
C. Reference
(1)
20-10-24/201, Rig Pins
(2)
29-11-00/201, Pressurize/Depressurize Main Hydraulic System
(3)
34-11-00/201, Pitot-Static System (Pressurization)
D. Access
(1)
Location Zone
313 Stabilizer Center Section Compartment (Left)
(2)
Access Panel
313AL Control Bay Access Door
E. Prepare to Adjust the Autopilot Pitch Control Servo
S 864-040
(1) Remove the DO-NOT-CLOSE tags and close these circuit breakers on the P11 panel:
(a)
11H17, FLT CONT SHUTOFF TAIL LEFT
(b)
11H18, FLT CONT SHUTOFF TAIL CENTER
(c)
11H28, FLT CONT SHUTOFF TAIL RIGHT
S 864-041
(2) On panel P61, remove the DO-NOT-OPERATE tags and set the L, C and R FLT CONTROL SHUTOFF switches in the ON position.
S 864-042
WARNING:_______STAY OFF ALL OF THE CONTROL SURFACES. THE CONTROL SURFACES USE HYDRAULIC POWER AND MAY MOVE WHEN ANY CONTROLS ARE MOVED OR WHEN THE HYDRAULIC SYSTEMS ARE PRESSURIZED. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(3)
Supply hydraulic pressure (Ref 29-11-00).
S 864-043
(4)
Manually operate the elevator system three times.
S 864-044
(5)
Pressurize the elevator feel pitot system to 350 knots (Ref
34-11-00).
(6)
Set the stabilizer trim to six units of trim.
(7)
Install the rig pin E/ST 7 (Ref 20-10-24).
S 484-041
(8)
Connect the Phase Synchronous Voltmeter to the power source given on the voltmeter placard.
S 864-045
S 834-038
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22-12-01
ALL ú ú 01 Page 411 ú Mar 20/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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