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A
747-400
MAINTENANCE MANUAL

INNER CYLINDER YOKE
1.
 WASHER

2.
 NUT

3.
 LUBE INSERT

4.
 O-RING (1 LOCATION)

5.
 LOCKBOLT

9. BRAKE ROD
6.
 BOLT

7.  
O-RINGS (3 LOCATIONS)

YOKE CONNECTION BOLT ASSEMBLY B1
BRAKE TORQUE ARM
9.  
BRAKE ROD

10.
 COTTER PIN

8. BOLT
11.
 NUT

12.
 WASHER

BRAKE ROD BOLT
C2
1  INSTALL THE BOLT WITH THE BOLTHEAD ON THE SIDE OF THE BRAKE RODS THAT IS FARTHEST FROM THE TRUCK BEAM. THE BOLTHEAD AND THE GREASE FITTING MUST POINT OUT, IN RELATION TO THE TRUCK BEAM.
2 INSTALL THE BOLT WITH THE BOLTHEAD ON THE SIDE OF THE TORQUE ARM THAT IS NEAREST TO THE TRUCK BEAM. THE BOLTHEAD MUST POINT IN, IN RELATION TO THE TRUCK BEAM.
Brake Rod and Brake Torque Sensor Figure 402 (Sheet 2)
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747-400 MAINTENANCE MANUAL
 S 494-003
 WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK(S) BELOW TO INSTALL
_______ THE DOOR LOCKS ON THE LANDING GEAR DOORS. THE DOORS CAN CLOSE QUICKLY IF YOU DO NOT INSTALL THE DOOR LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (2)  
Do this task: "Installation of the Door Locks on the Wing Landing Gear" (AMM 32-00-30/201).

 S 494-023

 (3)  
Do this task: "Installation of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).

 S 024-004

 (4)  
Do these steps to remove the brake rod:

 (a)  
Open the applicable circuit breaker shown and install a DO-NOT-CLOSE tag(s):

 NOTE: The numbers after the words TORQUE LIMIT show the
____ wheel numbers of the main landing gear to which the circuit applies. Figure 401 shows the wheel numbers of the main landing gear.
 1)  P180 DC Power Distribution Panel a) 180J9 TORQUE LIMIT 1, 5, 9, 13 b) 180F9 TORQUE LIMIT 2, 6, 10, 14 c) 180J24 TORQUE LIMIT 3, 7, 11, 15 d) 180F24 TORQUE LIMIT 4, 8, 12, 16
 (b)  Disconnect the applicable connector from the panel below the landing gear truck beam.
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747-400 MAINTENANCE MANUAL
 CONNECTORS
__________ ~............................................................. | Left Wing Gear Truck | ............................................................... | Wheel No. 1 | Wheel No. 2 | Wheel No. 3 | Wheel No. 4 | ............................................................... | DT1575 | DT1576 | DT1577 | DT1578 | 2...............…...............…..............…..............1 ~............................................................. | Left Body Gear Truck | ............................................................... | Wheel No. 5 | Wheel No. 6 | Wheel No. 7 | Wheel No. 8 | ............................................................... | DT1579 | DT1580 | DT1581 | DT1582 | 2...............…...............…..............…..............1 ~............................................................. | Right Body Gear Truck | ............................................................... | Wheel No. 9 | Wheel No. 10 | Wheel No. 11| Wheel No. 12| ............................................................... | DT1583 | DT1584 | DT1585 | DT158 | 2...............…...............…..............…..............1 ~............................................................. | Right Wing Gear Truck | ............................................................... | Wheel No. 13 | Wheel No. 14 | Wheel No. 15| Wheel No. 16| ............................................................... | DT1587 | DT1588 | DT1589 | DT1590 | 2...............…...............…..............…..............1
　
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