(e)
If it is necessary, lubricate each lubrication insert again.
(f)
Put the lubrication inserts (5) into each bolt (7).
(g)
Align the holes for each lockbolt (5).
S 224-049
CAUTION: MAKE SURE THAT YOU DO NOT MOVE OR DAMAGE THE WING GEAR TRUCK
_______ SENSORS OR TARGET BRACKET. IF THE TARGET BRACKET OR SENSORS ARE MOVED, THEN THE AIRPLANE SYSTEMS MAY NOT RECOGNIZE AN IN-AIR CONDITION.
(5)
If the sensor or target bracket is moved or damaged, then do the task to measure the wing landing gear truck sensor clearance (AMM 32-61-22/201).
S 024-024
(6)
Use the mechanical equipment to lower the shock strut to the wheel truck.
S 644-025
(7)
Lightly apply some grease to the hole of the pivot and to the shank of the pivot bolt (13) (Detail D).
S 494-026
(8)
Put the thread protector on the pivot bolt (13).
S 434-045
(9)
Install the pivot bolt (13) with the lubrication insert (10) and the O-rings (12) (Detail D).
NOTE: Install the bolt head on the inboard side of the truck beam.
____
S 094-027
(10) Remove the thread protector.
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A
747-400 MAINTENANCE MANUAL
S 644-028
(11)
Apply a layer of grease to the spline washer (8), the threads of the pivot bolt (13) and the nut (9).
S 434-029
(12)
Install the spline washer (8) and the nut (9) on the pivot bolt (13).
(a)
Tighten the nut 960 to 1200 pound-inches.
S 434-035
(13)
Install the lockbolt (11), the washer, and the locknut.
S 644-030
(14)
Apply a layer of grease to the brake rod bolts (7) and the washers
(1)
(Detail C).
S 824-038
WARNING:_______ USE THE CORRECT EQUIPMENT TO HOLD THE SHOCK STRUT IN THE
VERTICAL POSITION WHEN YOU REMOVE THE MECHANICAL EQUIPMENT
ABOVE THE TRUNNION. THE SHOCK STRUT CAN FALL IF YOU DO NOT
SUFFICIENTLY HOLD THE STRUT WITH A TRANSPORTATION DOLLY OR AN
ASSEMBLY STAND. A SHOCK STRUT WHICH FALLS CAN CAUSE INJURY TO
PERSONS AND DAMAGE TO THE EQUIPMENT.
(15)
Align the brake rods with the yoke of the inner cylinder. S 434-047
(16)
Install each brake rod bolt (7) with the lubrication inserts (3), and the O-rings (4 and 6).
NOTE: Install the assemblies with the heads of the bolts on the
____ outer sides of the brake rods (Detail C).
(a) Tighten each nut (2) 144 to 720 pound-inches.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 434-030
(17)
Install each lockbolt (5).
S 644-033
(18)
Apply a layer of grease to the bolt (14) for the upper torsion link (Detail E).
S 824-034
(19)
Lift the upper torsion link into the correct position.
S 434-031
(20)
Install the bolt (14) for the upper torsion link from the outboard side.
S 434-036
(21)
Install the shim (17) and the nut (15).
S 434-037
(22)
Install the lockbolt (16).
S 494-035
(23)
Install the truck lock (AMM 32-11-23/401).
S 434-044
(24)
Connect the head end of the tilt actuator to the shock strut.
(a)
Install the bolt (22), the end caps (21), the pin (20), the washers (19 and 23), and the nut (18).
(b)
Install the cotter pin.
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