S 494-063

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

 S 864-004

 (4)  
Lift the airplane (AMM 07-11-01/201).

 S 494-005

 (5)  
Put the gear handling dolly below the airplane.

 S 494-006

 (6)  
Lift the dolly platform until the dolly transmits the weight of the landing gear.

 F.
Procedure

 S 034-007
 (1)  
Remove the lockbolts (4) from two housing pins (3) for the lower bearing.

 (a)  
Remove the inboard pin and use the puller to remove the outboard pin.

 NOTE: Remove the shim (8) when you remove the outboard pin.
____
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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747-400 MAINTENANCE MANUAL
 S 494-008
 (2)  Attach the sling to the trunnion fork (7) and hold with the hoist.
 S 494-009
 (3)  Attach the drag brace (17) to the shock strut with the strap.
 S 034-010
 (4)  Use the thread protector to remove the bolt (11) from the trunnion
 fork joint.
 NOTE:____ Hold the drag brace strap in its position.

 S 034-011
 (5)  
Remove the lockbolt (9) from the bearing retaining nut (6).

 S 034-012

 (6)  
Remove the bearing retaining nut (6).

 S 034-013
 WARNING: MAKE SURE THAT YOU HOLD THE TRUNNION FORK WITH THE HOIST
_______ BEFORE YOU REMOVE THE BOLTS (14). IF YOU DO NOT HOLD THE TRUNNION FORK, THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO TO THE PARTS. THE TRUNNION FORK WEIGHS APPROXIMATELY 70 POUNDS.
 (7)  
Use the thread protector to remove the bolts (14) from the trunnion fork joint.

 S 034-014

 (8)  
Use the hoist to turn the trunnion fork (7) aft and up to isolate it from the shock strut lugs.

 S 034-015

 (9)  
Make sure that the bearing housing (1) moves freely when it is attached to the upper housing pins (2).

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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747-400 MAINTENANCE MANUAL
 S 034-016
 CAUTION:_______DO NOT REMOVE THE BEARING FULLY OUT OF THE HOUSING. THE OUTER RACE OF THE BEARING (5) WILL BREAK OPEN. IF YOU DO NOT HOLD IT, THE OUTER RACE (5) WILL FALL AND BECOME DAMAGED.
 (10)
 Let the bearing outer race (5) move out of the housing.

 (a)  
Move the bearing approximately 1 inch out.

 NOTE: Put lockwire or strong tape tightly around the
____ circumference of the open surface of the bearing.
 S 024-018
 (11)
 Turn the trunnion fork (7) up and aft until the bearing is clear of the housing (1).

 S 024-019

 (12)
 Lower the trunnion fork (7) and the bearing (5) to the floor.

 (a)  
Remove the lopckwire or tape from the bearing (5) and remove the bearing from the fork (7).

 S 034-020
 (13) Remove the bearing housing for the wing landing gear (AMM 57-43-01/401).
 TASK 32-11-19-404-021
 3.  Wing Gear Trunnion Fork Installation (Fig. 401)____________________________________
 A. Special Tools and Equipment
 (1)  
3ME65B00161-1 - Wing Gear Trunnion Torque Wrench Spanner Adapter

 (2)  
5OHME65B00161-1 - Wing Gear Trunnion Fork Sling Assembly

 (3)  
8PRE65B00161-1 - Wing Gear Trunnion Bolt Protector

 (4)  
9PRE65B00161-1 - Wing Gear Upper Trunnion Bolt Protector

 (5)  
8ME65B00161-1 - Drag Brace Support Strap

 (6)  
PME65B00161-1 - Landing Gear Transportation and Installation Dolly
　
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