(3)
AIPC 32-53-03 Fig. 2
(4)
SSM 32-53-02
(5)
WDM 32-53-13
B.
Access
(1)
Location Zone
755 Body Landing Gear, LH
C.
Remove the Electronic Control Unit (Fig. 401)
S 864-002
(1) Make sure that you install the ground locks of the landing gear (AMM 09-11-00/201).
S 494-003
WARNING: REFER TO AMM 32-00-30/201 FOR THE LOCK INSTALLATION PROCEDURE.
_______ THE FAST MOVEMENT OF THE DOORS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT IF THE LOCKS ARE NOT CORRECTLY INSTALLED.
(2)
Install the door locks of the main gear (AMM 32-00-30/201).
S 864-004
(3)
Open the circuit breakers as follows for the steering system of the body gear:
(a)
P7 Overhead Circuit Breaker Panel
1) 7G23 BODY GR STRG ARM AC
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32-53-03
ALL ú ú 01 Page 401 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
SEE A
INDICATOR LIGHT
TEST BUTTONS
BUTTON S1
BUTTON S2 ELECTRONIC
FWD CONTROL UNIT
A
Body Gear Steering Electronic Control Unit Installation Figure 401
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32-53-03
ALL ú ú 01 Page 402 ú Jun 10/88
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
2) 7G24 BODY GR STRG ARM DC.
S 034-005
(4)
Disconnect the three electrical connectors (DX400A, DX400B, and DX400C) from the electronic control unit.
S 024-006
(5)
Remove the 4 nuts and the washers and remove the unit from the bracket screws.
TASK 32-53-03-404-007
3. Install the Electronic Control Unit
___________________________________
A. References
(1)
AMM 09-11-00/201, Towing
(2)
AMM 32-00-30/201, Landing Gear Door Locks
(3)
AIPC 32-53-03 Fig. 2
(4)
SSM 32-53-02
(5)
WDM 32-53-13
B.
Access
(1)
Location Zone
755 Body Landing Gear, LH
C.
Install the Electronic Control Unit (Fig. 401)
S 864-008
WARNING: REFER TO AMM 32-00-30/201 FOR THE LOCK INSTALLATION PROCEDURE.
_______ THE FAST MOVEMENT OF THE DOORS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT IF YOU DO NOT CORRECTLY INSTALL THE LOCKS.
(1)
Make sure that you install the door locks of the main gear.
S 424-009
(2)
Install the electronic control unit.
(a)
Align the electronic control unit on the bracket and attach it with the four washers and the nuts.
S 434-010
(3)
Connect the three electrical connectors DX400A, DX400B, DX400C to the electronic control unit.
D.
Electronic Control Unit Test
S 864-011
(1)
Close the circuit breakers as follows:
(a)
P7 Overhead Circuit Breaker Panel
1) 7F25 PSEU SECT 1
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32-53-03
ALL ú ú 01 Page 403 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
2) 7F26 PSEU SECT 2
3) 7G23 BODY GR STRG ARM AC
(b) P180 DC Power Distribution Panel
1) J07 ANTI-SKID 1-3
2) F07 ANTI-SKID 1-3
3) J22 ANTI-SKID 5-7
4) F22 ANTI-SKID 6-8
5) F23 ANTI-SKID 9-11
6) J23 ANTI-SKID 10-12
7) F08 ANTI-SKID 13-15
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本文链接地址：747-400 AMM 飞机维护手册 起落架 LANDING GEAR 8(72)
