NOTE: This will remove all the load between the valve clevis
____
 and the link (4).

 (h)  
Disconnect the bolt (2) that holds the link to the clevis.

 (i)  
Remove the bolt (14).

 (j)  
Remove the rod (13).

 (k)  
Disconnect the attach bolt (11) and the nut (12) from the support fitting assembly.

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747-400
MAINTENANCE MANUAL

16. MECHANISM
COVER

SEE A
1. DOOR-OPERATED4. LINK SEQUENCE VALVE
15. ATTACH SCREW (4 LOCATIONS) 2. BOLT
POINT A
(RIG PIN HOLE)

3. BOLT (4 LOCATIONS)
5.
CARRIER ATTACH BOLT

6.
CARRIER ASSEMBLY

14. BOLT
POINT B
13. CONNECTING 7. BOLT
ROD

SUPPORT FITTING
ASSEMBLY

8.
ROD END

9.
RADIUS ROD

12. NUT
11. BOLT 10. DOOR ATTACHFWD FITTING
FORWARD WING LANDING GEAR DOOR
A
Wing Landing Gear Door-Operated Sequence Valve Mechanism Installation Figure 401
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747-400 MAINTENANCE MANUAL
 (l)  Remove the radius rod (9).
 TASK 32-32-03-404-006
 3.  Wing Landing Gear Door-Operated Sequence Valve Mechanism Installation_____________________________________________________________________
 A. Special Tools and Equipment
 (1)  
G12001 Kit (Rigging Pins) ~............................................................. | Rigging Pin No. | Length (inch) | Diameter (inch)| ............................................................... | WD-1 (LH) | 3.25 | 0.185 to 0.188| ............................................................... | WD-2 (RH) | 3.25 | 0.185 to 0.188| 2....................…....................…...................1

 B.
References

 (1)  
09-11-00/201, Towing

 (2)  
29-11-00/201, Main Hydraulic Supply System

 (3)  
32-00-30/201, Landing Gear Door Locks

 (4)  
32-12-00/501, Wing Gear Wheel Well Outboard Door

 (5)  
IPC 32-12-08 Fig. 1, IPC 32-32-02 Fig. 3

 C.
Access

 (1)  
Location Zone
 135 Wing Landing Gear Well, LH
 136 Wing Landing Gear Well, RH

 D.
Procedure

 S 424-007
 (1)  
Install the valve mechanism (Fig. 401):

 (a)  
Install the radius rod (9) on the support fitting assembly with washers on the two sides of the radius rod fitting.

 (b)  
Install the nut (12).

 (c)  
Tighten the nut 240-600 pound-inches.

 (d)  
Install the cotter pin.

 (e)  
If you cannot install the cotter pin or you can loosen the nut below the minimum torque after you install the cotter pin, do these steps: 1) Change the nuts with the other one or install a new one

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747-400 MAINTENANCE MANUAL
 2) Install AN960C1216L washer(s) adjacent to the nut.
 (f)  
Use the washers that follow to connect the radius rod (9) to the door fitting (10): 1) Use a countersunk washer made from high strength alloy

 steel adjacent to the bolt head. 2) Use a plain washer made from high strength steel adjacent to the nut and the bushing.

 (g)  
Tighten the nut 600-1500 pound-inches.
　
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