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 05-51-07
 ALL  ú ú 01 Page 202 ú Oct 10/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 (15)
 AMM 32-45-03/601, Wheels

 (16)
 AMM 32-51-00/501, Nose Wheel Steering System

 B. Airplane Inspection
 S 212-005
 (1)  Do the body landing gear and support structure inspection.
 (a)  
Make sure the shock strut pressures are normal and the hydraulic fluid are at the correct levels (AMM 12-15-04/301).

 (b)  
Lift the airplane with jacks (AMM 07-11-01/201).

 (c)  
Examine the inner and outer cylinder lugs.

 (d)  
Examine all structural components of the body landing gear and carefully examine the components that follow: 1) the shock strut 2) the trunnion 3) the drag strut and universal fitting 4) the torsion links 5) the truck beam 6) the side brace 7) the downlock 8) the truck Position Actuator (the actuator that sets the

 angle of the truck beam for retraction, extension). 9) The strut doors and the mechanism that retracts and extends
 the doors
 10) the brake rods
 11) the steering mechanism
 12) the tow fitting
 13) the axles.

 (e)  Examine the support structure of the body landing gear and carefully examine the components that follow: 1) the trunnion support fittings and attachments
 -inboard
 - outboard

 2) the drag strut support fitting 3) the drag strut downlock attach fitting.
 (f)  
Examine all of the bolts, spindles, and pins.

 (g)  
If you found tire damage in Phase 1, do the steps that follow: 1) Remove and examine the wheel structure (AMM 32-45-03/601). 2) Remove and examine the brake assembly (AMM 32-41-15/601).

 (h)  
If one or more of the conditions that follow occurred; remove, disassemble, and examine all parts of the shock strut (AMM 32-13-02/401). 1) The shock strut pressures were sufficiently low to cause

 damage. 2) The hydraulic fluid levels were sufficiently low to cause damage.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 05-51-07
 ALL  ú ú 01 Page 203 ú Jun 10/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 3)  You found damage to one or more of the parts during your inspection of the landing gear.
 (i)  
Make sure the body landing gear retracts and extends correctly (AMM 32-33-00/501).

 (j)  
Do a check of the body gear steering.

 S 212-006
 (2)  Do an inspection of the wing landing gear and support structure (AMM 32-11-01/601).
 (a)  
Make sure the shock strut pressures are normal and the hydraulic fluids are at the correct levels (AMM 12-15-03/301).

 (b)  
Examine the inner and outer cylinder lugs.

 (c)  
Examine all structural components of the wing landing gear and carefully examine the components that follow: 1) the shock strut 2) the trunnion, trunnion fork 3) the drag brace 4) the torsion links 5) the truck beam 6) the side strut 7) the downlock 8) the truck position mechanism (the mechanism that sets the

 angle of the truck beam for retraction, extension) and linkage 9) the strut doors and the mechanism that retracts and extends
 the doors
 10) the brake rods
 11) the tow fitting
 12) the axles.

 (d)  
Examine the support structure of the wing landing gear and carefully examine the components that follow: 1) the side strut support beam (forward of Body Station 1350,

 WL 140) 2) the side strut attachments (Body Station 1350) 3) the landing gear beam.

 (e)  
Examine the landing gear beam to rear spar attachment.

 (f)  
Examine the landing gear trunnion attachment to the areas that follow: 1) the rear spar attachment 2) the landing gear beam attachment

 (g)  
Examine all of the bolts, spindles, and fuse pin connections.

 (h)  
　
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