747-400 MAINTENANCE MANUAL
 S 864-030
 (4)  Restore the airplane weight to the landing gear (AMM 07-11-01/201).
 S 094-031
 WARNING:_______REFER TO AMM 32-00-30/201 FOR LOCK REMOVAL PROCEDURE. RAPID ACTION OF DOORS MAY INJURE PERSONNEL OR DAMAGE EQUIPMEMT.
 (5)  
Do this task: "Wing Landing Gear Door Lock Removal" (AMM 32-00-30/201).

 S 094-042

 (6)  
Do this task: " Body Landing Gear Door Lock Removal" (AMM 32-00-30/201).

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747-400 MAINTENANCE MANUAL
 BODY GEAR UPPER DRAG STRUT - INSPECTION/CHECK
_____________________________________________
 1.  General_______
 A.  The upper drag strut of the body landing gear inspection has the tasks that follow:
 (1)  Measure the fit of the spindle bolt, the apex bolt, and the downlock actuator spindle.
 TASK 32-13-04-206-001
 2.  Upper Drag Strut Wear Check_______________________________
 A.  References
 (1)  
32-13-04/401, Body Gear Upper Drag Strut

 (2)  
32-13-10/201, Body Gear Lower Jury Strut

 (3)  
32-33-15/401, Body Gear Downlock Actuator

 (4)  
IPC 32-13-01 Fig. 1, IPC 32-13-05 Fig. 1, IPC 32-13-10 Fig. 1, IPC 32-33-15 Fig. 1

 B.  
Access

 (1)  
Location Zone
 755 Body Landing Gear, LH
 765 Body Landing Gear, RH

 C.  
Procedure (Fig. 601)

 S 036-002
 (1)  
Remove the downlock actuator (Ref 32-33-15/401).

 S 026-003

 (2)  
Remove the upper drag strut of the body landing gear (Ref 32-13-04/401).

 S 226-004

 (3)  
Do a check on the wear limits for the items that follow:

 (a)  
spindle bolt of the upper drag strut

 (b)  
apex bolt (Ref 32-13-10/201)

 (c)  
downlock actuator spindle.

 S 216-007
 (4)  
Measure the parts as it is necessary and compare the measured dimensions to the limit dimensions.

 S 216-008

 (5)  
If the part is not in tolerance, repair or replace as it is necessary.

 (6)  
Install the upper drag strut (Ref 32-13-04/401).

 (7)  
Install the downlock actuator (Ref 32-33-15/401).

 S 426-005
 S 436-006
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747-400
MAINTENANCE MANUAL

UPPER STRUT  DRAG 
B  JURY STRUT 
B  A 
A 
DOWNLOCK ACTUATOR  LOWER DRAG STRUT 
1.  BUSHING/SPINDLE  FWD 
2.  SPINDLE/PLUG  A-A  5.  RETAINER BOLT/LUBE  4.  BUSHING/BOLT  6.  BUSHING/BOLT  4.  BUSHING/BOLT 

7.

8.

B-B
Body Gear Upper Drag Strut Wear Limits Figure 601 (Sheet 1)
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747-400
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INDEX NO.  PART NAME  DIM.  DESIGN LIMITS  WEAR LIMITS  REPLACE PART WORN  REPAIR WORN PART  REPAIR INSTR. 
DIAMETER  WEAR MITTED PER-DIM. 3  DIAM CLEAR-MAX ANCE
MIN  MAX 
1  BUSHING  ID  1.5020  1.5030  1.5035  0.0065  X  2 
SPINDLE  OD  1.4980  1.4990  1.4955  X  1 
　
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