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 32-31-00
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747-400 MAINTENANCE MANUAL
 (b)  
Make sure that all pulleys and quadrants turn freely.

 (c)  
Make sure that the pulleys and quadrants do not touch the cable guards.

 (d)  
Make sure the fairleads, rub strips or grommets do not move the cables from the adjusted position of operation.

 (e)  
After you adjust the system, do the checks that follow: 1) Make sure the cables do not touch the pulley or the quadrant flanges for the total cable movement

 2)  Make sure the cable is in 2 degrees of the plane of the pulley or quadrant.

 (f)  
Do a check of the cable tension in cables LGV1A, LGV1B, LGV2A and LGV2B. 1) Make sure the tension is to the value in Fig. 505.

 I.  
Put the Airplane Back to Its Usual Condition.

 S 865-007
 (1)  Put the landing gear handle in the DN position.
 S 095-031
 WARNING: CAREFULLY DO THE SPECIFIED TASK TO REMOVE THE DOOR LOCKS FROM
_______ THE LANDING GEAR DOORS. THE DOORS CAN CLOSE QUICKLY IF YOU DO NOT REMOVE THE DOOR LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (2)  
Remove the door locks from the doors for the wing landing gear (AMM 32-00-30/201).

 S 095-034

 (3)  
Remove the door locks from the doors for the body landing gear (AMM 32-00-30/201).

 TASK 32-31-00-735-009
 3.  Operational Test of the Control System for the Landing Gear___________________________________________________________
 A.  General
 (1)  
Use this test to make sure the control system for the landing gear operates correctly. Use this test to make sure that the selector valves operate correctly with minimum control system movement.

 (2)  
If you make very small adjustments, you do not have to adjust the control handle for the landing gear. But you must do the operational test of the landing gear doors.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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747-400
MAINTENANCE MANUAL

100
90
80
70

RIGGING LOAD (POUNDS)
TOLERANCE BAND
60
50
40
30
20
AMBIENT TEMPERATURE (`F)
Landing Gear Control System Rigging Loads
Figure 505

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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A
747-400
MAINTENANCE MANUAL

 B. Special Tools and Equipment
 (1)  
G12001 Kit (Rigging Pins) ~................................................................... | Rigging Pin No. | Length (inch) | Diameter (inch) | ..................................................................... | LG-1 | 4.0 | 0.309 to 0.311 | ..................................................................... | LG-2 | 4.0 | 0.309 to 0.311 | 2.....................….......................….....................1

 C.
Standard Tools and Equipment

 (1)
G32021 - Force Gage Equipment - Landing Gear Lever or Equivalent

 D.
References

 (1)  
AMM 09-11-00/201, Towing

 (2)  
AMM 24-22-00/201, Manual Control

 (3)  
AMM 29-11-00/201, Main Hydraulic Supply System

 (4)  
AMM 32-00-30/201, Landing Gear Door Locks

 (5)  
AIPC 32-31-61 Fig. 1

 (6)  
AIPC 32-31-63 Fig. 1

 (7)  
AIPC 32-31-64 Fig. 1

 (8)  
WDM 32-61-11, WDM 32-61-21
　
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