S 984-032
 (6)  
Move the landing gear to the correct position with the axle jacks.

 (a)  
Move the landing gear until the trunnion approximately aligns with the longitudinal axis of the airplane.

 (b)  
Make sure the trunnion aligns with the aft trunnion bearing in the support beam.

 (c)  
Make sure you can lower the airplane with a safe clearance between the landing gear and the airplane structure.

 S 584-034
 CAUTION:_______MAKE SURE ALL EQUIPMENT IS CLEAR OF THE AIRPLANE. THE AIRPLANE CAN COME DOWN ON THE MAINTENANCE EQUIPMENT AND CAUSE DAMAGE TO THE FUSELAGE AND THE EQUIPMENT.
 (7)  
Lower the airplane until approximately 12.5 inches of the inner cylinder is in view on the other (installed) wing landing gear.

 S 984-031

 (8)  
Carefully lift the outer cylinder of the shock strut with the oleo jack.

 NOTE: Make sure the air valve on the shock strut is open.
____
 (a)  
Align the aft end of the trunnion with the aft bearing on the support beam.

 (b)  
Move the landing gear until the trunnion is parallel with the ground.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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747-400
MAINTENANCE MANUAL

 S 644-057
 WARNING: USE THE SPECIFIED PROCEDURES FROM THE MANUFACTURER OR FROM THE
_______ APPLICABLE SAFETY ORGANIZATIONS WHEN YOU USE BMS 3-27 (CORROSION INHIBITING COMPOUND). IMMEDIATELY REMOVE THIS MATERIAL WITH WATER IF IT GETS ON YOUR SKIN. IF THIS MATERIAL GETS IN YOUR EYES, IMMEDIATELY FLUSH YOUR EYES WITH WATER AND GET MEDICAL AID. THIS MATERIAL CONTAINS VERY POISONOUS AND FLAMMABLE AGENTS WHICH CAN CAUSE INJURIES TO PERSONS.
 (9)  Lubricate the threads of the bearing adjustment ring (11) with a light layer of BMS 3-27 (corrosion inhibiting compound) (Fig. 403).
 S 644-056
 WARNING: USE THE SPECIFIED PROCEDURES FROM THE MANUFACTURER OR FROM THE
_______ APPLICABLE SAFETY ORGANIZATIONS WHEN YOU USE BMS 3-27 (CORROSION INHIBITING COMPOUND). IMMEDIATELY REMOVE THIS MATERIAL WITH WATER IF IT GETS ON YOUR SKIN. IF THIS MATERIAL GETS IN YOUR EYES, IMMEDIATELY FLUSH YOUR EYES WITH WATER AND GET MEDICAL AID. THIS MATERIAL CONTAINS VERY POISONOUS AND FLAMMABLE AGENTS WHICH CAN CAUSE INJURIES TO PERSONS.
 (10)
 Lubricate the outer threads of the trunnion outer sleeve (12) with a light layer of BMS 3-27 (corrosion inhibiting compound) (Fig. 403).

 S 424-034

 (11)
 Move the landing gear in the aft direction to put the trunnion into the aft bearing.

 NOTE: You can adjust the oleo jack and the axle jacks while
____
 you put the trunnion into the aft bearing.

 S 824-035
 (12) Turn the bearing adjustment ring (11) with your hand until it is fully against the trunnion outer sleeve.
 NOTE: You will loosen the adjustment ring in the subsequent
____
 steps for adjustment.

 S 094-036
 (13) Remove the bearing guide from the end of the trunnion.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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A
747-400 MAINTENANCE MANUAL
 S 424-033
 (14) Connect the trunnion fork to the trunnion (AMM 32-11-19/401).
 NOTE: You can use the oleo jack and the mechanical lock to put the
____
 landing gear in the correct position.

 S 824-034
 (15)
 If it is necessary, adjust the lower pins in the forward bearing housing with the jacks and the mechanical lock.

 S 434-035

 (16)
 Install the drag brace (AMM 32-11-03/401).

 S 434-036

 (17)
 Assemble the aft trunnion bearing (Fig. 402):

 (a)  
Turn the bearing adjusting ring (11) counterclockwise until it is against the flange of the spherical bearing (1).
　
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