B.
References
(1)
AMM 06-09-05/201, Body Section 48 Access Doors and Panels
(2)
AIPC 27-48-52, Fig. 1
(3)
SSM 27-48-01
(4)
WDM 27-48-11
C.
Access
(1)
Location Zone
315, 316 Area Aft of Stabilizer Box
(2)
Access Panel
315A Access Door
D.
Procedure
(1)
Set the STAB TRIM 2 and 3 switches on the control stand to CUTOUT.
S 864-003
(2)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a)
P6, Main Power Distribution Panel
1) 6K23, STAB TRIM POSN IND L
2) 6K24, STAB TRIM POSN IND R
(b)
P7, Overhead Circuit Breaker Panel
1) 7E7, STAB TRIM L S/O VALVE
2) 7E20, STAB TRIM R S/O VALVE
3) 7E6, STAB TRIM L CONT
4) 7E19, STAB TRIM R CONT
S 864-002
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27-48-01
ALL ú ú 01 Page 401 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
SEE A
STABILIZER
CENTER BOX
JAMNUT
BOLT,
SPACER, 2 WASHERS, FWD CONTROL
NUT ROD A
SHEAR
ASSEMBLY DECK
MOUNTING CRANK
BOLT AND
WASHER
(4 LOCATIONS)
MODULE TRANSMITTER A
STABILIZER
POSITION
TRANSMITTER
A MODULE
MODULE
MOUNTING
SCREWS
A-A
____RIGHT TRANSMITTER MODULE INSTALLATION
NOTE: SHOWN. LEFT AND CENTER TRANSMITTER MODULES SIMILAR.
Stabilizer Position Transmitter Installation Figure 401
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27-48-01
ALL ú ú 01 Page 402 ú Jun 10/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
5) 7C10, FLT CONT ELEC 2L AC 6) 7C11, FLT CONT ELEC 2L DC 7) 7C12, FLT CONT ELEC 1L AC 8) 7C13, FLT CONT ELEC 1L DC 9) 7C14, FLT CONT ELEC 1R AC 10) 7C15, FLT CONT ELEC 1R DC 11) 7C16, FLT CONT ELEC 2R AC 12) 7C17, FLT CONT ELEC 2R DC
S 864-054
WARNING: MAKE SURE TO OPEN THE CIRCUIT BREAKERS FOR THE CAPTAIN'S AND
_______ THE FIRST OFFICER'S SEATS BEFORE YOU DO WORK AROUND THEM. A FAILURE TO OPEN THE CIRCUIT BREAKERS CAN CAUSE THE SEATS TO MOVE ACCIDENTALLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(3)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a)
P414, Power Distribution Center Panel - Left 1) 414D8, CAPTAINS PWR SEAT
(b)
P415, Power Distribution Center Panel - Right 1) 415H32, F/O PWR SEAT
S 014-004
(4)
Open the 315A access door (AMM 06-09-05/201).
S 034-005
(5)
Remove these electrical connectors from the applicable transmitter:
(a)
DM7884, Left Transmitter
(b)
DM7883, Center Transmitter
(c)
DM7882, Right Transmitter
S 024-006
(6)
Remove the transmitter module:
(a)
Remove three screws and nuts that attach the transmitter module to the mounting bracket. 1) Remove the sealant from three screws and nuts. 2) Remove three screws, washers, and nuts.
(b)
Remove the transmitter module.
TASK 27-48-01-404-009
3. Horizontal Stabilizer Position Transmitter Module Installation (Fig. 401)______________________________________________________________
A. Consumable Materials
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