(1)
Location Zones
118 Electrical & Electronics Compartment, RH
(P180 DC Power Distribution Panel) 755 Body Landing Gear - Left 765 Body Landing Gear - Right 735 Wing Landing Gear - Left 745 Wing Landing gear - Right
D. Procedure (Fig. 401)
S 864-005
(1) Make sure that the ground locks are installed in all landing gear (AMM 09-11-00/201).
S 494-006
WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK 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 Body Landing Gear" (AMM 32-00-30/201).
S 494-016
(3)
Do this task: "Installation of the Door Locks on the Wing Landing Gear" (AMM 32-00-30/201).
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747-400
MAINTENANCE MANUAL
S 374-028
(4) Apply two layers of primer to the sensor where it will touch the
brake.
S 374-029
(5) Apply high-temperature antisieze lubricant on the part of the sensor
that will be installed in the brake assembly.
NOTE:____ This step is optional. The application of the
high-temperature antisieze lubricant will make it easier to
install the sensor and to remove it in the future.
S 024-022
CAUTION: MAKE SURE THAT YOU DO NOT APPLY TOO MUCH FORCE WHEN YOU
_______ INSERT THE SENSOR INTO THE BRAKE PISTON HOUSING. THE SENSOR WILL BEND EASILY. BADLY BENT SENSORS ARE NOT SERVICEABLE.
(6)
Push the sensor into its position in the lower part of the brake piston housing.
S 024-018
(7)
Align the holes in the sensor with the holes in the brake housing and install the bolts with washers (2 locations) and then tighten.
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747-400 MAINTENANCE MANUAL
S 024-027
(8) Use the ST2584C wrench to connect the brake temperature sensor to
the airplane wire bundle at the applicable connector below: CONNECTOR
_________
Left Wing Gear Truck
~.........................................................
| Left Front | Right Front | Right Rear | Left Rear |
...........................................................
| DT520 | DT519 | DT518 | DT521 |
2.............…...............…..............…............1
Left Body Gear Truck
~.........................................................
| Left Front | Right Front | Right Rear | Left Rear|
...........................................................
| DT524 | DT523 | DT522 | DT525 |
2.............…...............…..............…............1
Right Body Gear Truck
~.........................................................
| Left Front | Right Front | Right Rear | Left Rear|
...........................................................
| DT528 | DT527 | DT526 | DT529 |
2.............…...............…..............…............1
Right Wing Gear Truck
~.........................................................
| Left Front | Right Front | Right Rear | Left Rear|
...........................................................
| DT532 | DT531 | DT530 | DT533 |
2.............…...............…..............…............1
(a)
Tighten the coupling nut on the sensor connector to 55-65 pound inches.
(b)
Align the elbow to give the maximum clearance from the brake housing. 1) Make sure the connector serrations and the elbow serrations
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