S 394-099
(12)
Apply the sealant to the bolt (1) heads. Use BMS 5-95 sealant.
S 434-100
(13)
Remove the covers from the EAS electrical receptacle and the electrical connector.
S 434-101
(14)
Connect the electrical connector to the EAS electrical receptacle.
S 864-104
(15)
Remove the DO-NOT-OPERATE identifiers from the two control columns.
I. Adjust the EAS Control Rod (CMCS - AFDS Ground Test - XDUCER OUTPUTS)
NOTE: There are two procedures you can use to adjust the EAS linkage.
____ The first procedure is to use CMCS - AFDS - Ground Test - XDUCER OUTPUTS. The second procedure is to use a phase synchronous voltmeter.
S 864-105
(1) Supply electrical power (AMM 24-22-00/201).
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747-400 MAINTENANCE MANUAL
S 864-107
(2) Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P7 Overhead Circuit Breaker Panel
1) 7D7, FLT CONT CMPTR L SERVO
2) 7D8, FLT CONT CMPTR L PWR
3) 7D12, FLT CONT CMPTR C SERVO
4) 7D13, FLT CONT CMPTR C PWR
5) 7D14, FLT CONT CMPTR R SERVO
6) 7D15, FLT CONT CMPTR R PWR
7) 7E7, STAB TRIM L S/O
8) 7E20, STAB TRIM R S/O
(b)
P180 DC Power Distribution Panel
1) 180E7, ELEV/RUD VLV SYS 2
2) 180E22, ELEV/RUD VLV SYS 4
3) 180H8, ELEV/RUD VLV SYS 1
4) 180H23, ELEV/RUD VLV SYS 3
S 864-187
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF ALL CONTROL
_______ SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. AILERONS, RUDDERS, ELEVATORS, FLAPS, SPOILERS, LANDING GEAR, AND THRUST REVERSERS CAN MOVE QUICKLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(3)
Supply hydraulic power to systems 1, 2, and 3 (AMM 29-11-00/201).
S 864-110
(4)
Set the INBD CRT and LWR CRT switches to the NORM position. You can find these switches on the captain's and the first officer's instrument panels.
S 864-111
(5)
Put the FLT CONTROL HYD POWER TAIL 1, 2, and 3 switches to the NORM position. You can find these switches on the Pilot's Overhead Maintenance Panel (P461).
S 864-112
(6)
Put the STAB TRIM 2 and 3 switches to the ON position and remove the DO-NOT-OPERATE tags. You can find these switches on the Pilots' Control Stand.
(7)
Set the stabilizer to six units.
S 864-186
(8)
Pressurize the airplane pitot-static system to an airspeed of 320 knots (AMM 34-11-00/201).
S 864-113
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747-400 MAINTENANCE MANUAL
S 744-115
(9) Do this task: Ground Test - XDUCER OUTPUTS (AMM 22-10-00/501).
NOTE: Only do a check on the elevator surface position.
____
S 744-116
(10) Monitor the left, center and right ELEVATOR SURFACE POSITION display values.
S 834-201
WARNING:_______DO NOT TOUCH THE PNEUMATIC DUCTS WHEN THEY ARE HOT. WHEN THE DUCTS ARE HOT THEY CAN CAUSE INJURY TO PERSONS.
(11)
Adjust the check nuts on the EAS control rod until the left, center and right display values are 0.0 degrees.
S 434-118
(12)
Tighten the check nuts on the EAS control rod.
S 864-183
(13)
Make sure the rod ends of the control rod fills at least 50% of the inspection hole.
S 864-119
(14)
Remove the pressure from the airplane pitot-static system
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