(a)  
Do the steps that follow:

 1)  Push the barrel on the hose half toward the brake and turn clockwise to disengage the locking pin on the brake half from the slot on the hose half.
 2)  Pull the barrel on the hose half of the brake disconnect away from the brake until the threads of the two halves of the brake disconnect are engaged.
 3)  Turn the barrel counterclockwise to disconnect the hose half of the brake disconnect from the brake half.
 NOTE: The brake half of the hydraulic brake disconnect
____ can stay on the brake unit. The hose half of the hydraulic brake disconnect stays on the hydraulic line.
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A
747-400 MAINTENANCE MANUAL
BRAKE TEMPERATURE SENSOR CONDUIT
SEE A
FWD
6. BOLT CONDUIT
8. FAIRLEAD
10. WASHER
7. NUT
AXLE
7. NUT
BRAKE TEMPERATURE
SENSOR CONNECTOR

BRAKE TEMPERATURE SENSOR CONDUIT
A
Brake Temperature Sensor Conduit Figure 401
10. WASHER
6. BOLT
9. FAIRLEAD
LANDING GEAR BRAKE UNIT
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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A

747-400
MAINTENANCE MANUAL

LANDING GEAR 
BRAKE UNIT 
SEE  A  LOCKING  BRAKE DISCONNECT 
PIN  (BRAKE HALF) 
SLOT 
BRAKE DISCONNECT 
(HOSE HALF) 
1. BRAKE UNIT 
HYDRAULIC
LINE 
B 
SEE  B 

5. COTTER PIN 
4. NUT 
3. WASHER  TORQUE ARM  BRAKE ROD  2. BOLT 
A LANDING GEAR BRAKE UNIT 
Landing Gear Brake Unit Figure 402 

G28582
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A
747-400 MAINTENANCE MANUAL
 S 024-049
 CAUTION:_______BE VERY CAREFUL WITH CARBON BRAKES. CARBON BRAKES ARE MORE EASILY DAMAGED THAN STEEL BRAKES. CARBON BRAKE DISCS WITH NICKS AND CRACKS ARE NOT SERVICEABLE AND CAN NOT BE REPAIRED.
 DO NOT PUT FORCE ON THE HEAT SHIELDS OF A BRAKE UNIT WHEN YOU REMOVE OR INSTALL THE BRAKE UNIT. BENT HEAT SHIELDS FREQUENTLY CANNOT BE REPAIRED. A BRAKE UNIT WITH A BENT HEAT SHIELD WILL CAUSE SCORING ON THE WHEEL INNER SURFACE WHEN THE WHEEL TURNS.
 (4)  
Remove the brake unit (1) from the axle (Fig. 402).

 (a)  
Use a brake change adapter or a brake sling to remove the brake unit from the axle.

 NOTE: To use the brake change adapter to remove a brake unit,
____ you must also have a brake change dolly. To use the brake sling to remove a brake unit, you must also have a commercial hoist. If you use the brake sling, use the brake sling that is correct for the temperature condition of the brake.
 (b)  Use the brake puller if it is not easy to remove the brake unit.
 NOTE: The brake puller is only necessary when corrosion and
____ heat cause the brake unit to bind on the axle.
 TASK 32-41-15-404-014
 3.  Install the Landing Gear Brake Unit___________________________________
 A. General
 (1)  In subsequent steps, the landing gear brake unit is referred to as the brake unit.
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