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A 747-400 MAINTENANCE MANUAL
(2) S 864-006Supply electrical power (AMM 24-22-00/201).
(3) S 864-007Close these circuit breakers in this order: (a) P7, Overhead Circuit Breaker Panel 1) 7D5, STICK SHAKER L 2) 7D19, STICK SHAKER R 3) 7A1, MAWEA PWR A 4) 7B1, MAWEA PWR B
(4) S 714-008Make sure that the 2 LED's (on the front of the stall warning management computer) come on for approximately 20 seconds after you close the MAWEA PWR circuit breakers.
NOTE:____ If the red LED does not go off after 30 seconds, there is a failure in the circuit card.
(5) S 864-009Remove electrical power (AMM 24-22-00/201).
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747-400 MAINTENANCE MANUAL
CONTROL COLUMN SHAKER - REMOVAL/INSTALLATION
____________________________________________
1. General_______
A. This subject has two tasks, one for the removal and one for the installation of the control column shaker. After the installation, you will do a confidence test of the stall warning system with the CMC.
B. The procedure is the same for the captain's or the first officer's control column shaker.
TASK 27-32-02-004-001
2. Control Column Shaker Removal (Fig. 401)_____________________________
A. References
(1)
AIPC 27-32-02, Fig. 1
(2)
SSM 27-32-01
(3)
WDM 31-51-11
B.
Access
(1)
Location Zones 221 Control Cabin, L - Captain's Control Column 222 Control Cabin, R - First Officer's Control Column
C.
Procedure
S 864-002
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.
(1)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a)
P414, Left Power Distribution Panel
1) 414D8, CAPT PWR SEAT
(b)
P415, Right Power Distribution Center 1) 415H32, F/O PWR SEAT
(c)
P7, Overhead Circuit Breaker Panel
1) 7D5, STICK SHAKER L
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A
747-400
MAINTENANCE MANUAL
SEE A
SEE B
1.
BOLT
2.
STRAP
7. SHAKER
A
5. SHIM (20.57 |0.076 cm) 8.10 |0.03 INCHES 4. SPACER 3. NUT
6. ELECTRICAL CONNECTOR 5. SHIM
FWD B
Control Column Shaker Installation
Figure 401
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747-400 MAINTENANCE MANUAL
2) 7D19, STICK SHAKER R
S 034-004
(2)
Disconnect the electrical connector DM7984 or DM7983 (6) from the applicable control column shaker (7).
S 034-005
(3)
Remove the nuts (3), bolts (1), spacers (4) and shims (5) which attach the shaker (7) to the strap (2).
S 024-018
(4)
Remove the shaker (7).
TASK 27-32-02-404-006
3. Control Column Shaker Installation (Fig. 401)__________________________________
A. Parts ~.............................................................................. | MM | | IPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 1 | Bolt | 27-32-02 | 01 | 5 | | | 2 | Strap | | | 25 | | | 3 | Nut | | | 15 | | | 4 | Spacer | | | 10 | | | 5 | Shim | | | 20 | | | 7 | Shaker (Shaker - Coax. Cont) | | | 30 | 2......…........…...................................…...........….....…........1
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