22-13-03
ALL ú ú 02 Page 406 ú Mar 20/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
S 434-026
(11)
Attach the control rod assembly (5) to the quadrant autopilot crank with the bolt (2).
S 434-027
(12)
Connect the electrical connector to the servo.
S 824-028
(13)
Adjust the servo with the Maintenance Control Display Panel (MCDP) or the Model 101A Phase Synchronous Voltmeter.
G. Adjust the Servo with the Maintenance Control Display Panel (MCDP)
S 434-029
(1)
Install rig pins A1 and A2 if they are not installed.
S 864-030
(2)
Supply electrical power (Ref 24-22-00).
S 864-031
(3)
Remove the DO-NOT-CLOSE tags and close these circuit breakers on the P11 panel:
(a)
11E17, FLT CONT COMPUTER POWER LEFT
(b)
11E18, FLT CONT COMPUTER SERVO LEFT
(c)
11E20, FLIGHT CONT CMPTR PWR CENTER
(d)
11E21, FLIGHT CONT CMPTR SERVO CENTER
(e)
11E35, FLT CONT CMPTR PWR RIGHT
(f)
11E36, FLT CONT CMPTR SERVO RIGHT
S 864-032
(4) Make sure these circuit breakers on the P11 panel are closed:
(a)
11C30, LANDING GEAR POS SYS 1
(b)
11E16, MODE CONT PNL LEFT
(c)
11E34, MODE CONT PNL RIGHT
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22-13-03
ALL ú ú 13 Page 407 ú Mar 20/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
(d)
GUN 001-050, 052-999;
11S4, MAINT CONT DSPL
(e)
GUN 051;
11S6, MAINT CONT DSPL
(f)
11S15, AIR/GND SYS 1
(g)
11S19, AIR/GND SYS 2
(h)
11S23, POS SYS 2
S 714-033
(5)
Start MCDP Ground Test 66 - XDCR OUTPUTS (Ref 22-00-02) with hydraulic power off and rig pins A1 and A2 installed.
S 984-034
(6)
Push YES/ADV until 66 AIL SURF DEG, |XX.X |XX.X |XX.X shows.
S 824-035
(7)
Adjust the servo control rod assembly until the applicable servo display is 0.00 |0.5 degrees. Make sure the difference between the channels is not more than 0.4 degree.
S 214-036
(8)
Make sure the threads on the adjustable rod ends are correctly installed. Rod ends will cover at least one-half of the applicable inspection hole.
S 434-037
(9)
Tighten the jamnuts (13).
S 434-038
(10)
Install the nut (4) and washer (3) on the bolt (2) that attaches the rod end to the quadrant autopilot crank.
(a) Tighten the nut (4).
S 094-039
(11)
Remove the rig pins A1 and A2.
S 714-040
(12)
Do the Test the Servo Installation steps.
H. Adjust the Servo with a Model 101A Phase Synchronous Voltmeter
S 494-041
(1)
Install rig pins A1 and A2 if they are not installed.
S 484-042
(2)
Connect the Phase Synchronous voltmeter to the power source shown on the voltmeter placard.
(3)
Set the ON/OFF (S1) switch to ON.
S 484-043
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22-13-03
ALL ú ú 10 Page 408 ú Mar 20/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
S 484-070
(4)
Stop for 10 minutes to let the voltmeter prepare for operation. S 824-044
(7)
Disconnect the electrical connector from the servo.
S 484-047
(8)
Connect the -1 and -5 cable assemblies to the Autopilot Pitch Lateral Servo and Phase Synchronous Voltmeter.
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