S 434-011
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A
747-400 MAINTENANCE MANUAL
 F. Operational Test
 S 864-012
 (1)  
Supply electrical power (AMM 24-22-00/201).

 S 864-013

 (2)
Close these circuit breakers and remove the DO-NOT-CLOSE tags:

 (a)  
On the Auxilary External 2 Power Center-Right panel P715: 1) 715XX, NOSE CARGO DOOR

 (b)  
On the Power Distribution Center-Right panel P415: 1) 415F16, NOSE CARGO DOOR CONTROL

 (c)  
On the Nose Cargo Door Power panel H122:
 1) 122XX, DOOR LIFT
 2) 122XX, PULL UP CAM
 3) 122XX, LATCHES 1-4R
 4) 122XX, LATCHES 1-4L
 5) 122XX, LATCHES 5-8R
 6) 122XX, LATCHES 5-8L

 S 714-014
 (3)  
If you did not move the door before the installation of the new drive shaft, make sure the door operates smoothly.

 S 824-015

 (4)  
If you moved the door before the installation of the new drive shaft, do these steps to adjust the linear actuator:

 (a)  
Move the door until you can install the rig pin ND-3 in the linear actuator from which the drive shaft was not removed (Fig. 401).

 (b)  
If you can install the rig pin ND-3 in the linear actuator, make sure that the door is in the fully closed position.

 (c)  
If you cannot install the rig pin ND-3 in the linear actuator, adjust the linear actuator (Ref 52-31-02/401).

 G.
Put the Airplane Back To Its Usual Condition.

 (1)  
Remove electrical power, if it is not necessary (Ref 24-22-00/201).

 S 864-016
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A
747-400 MAINTENANCE MANUAL
 NOSE CARGO DOOR LATCH ACTUATOR - REMOVAL/INSTALLATION
_____________________________________________________
 1.  General_______
 A. This procedure has two tasks:
 (1)
The removal of the latch actuator on nose cargo door

 (2)
The installation of the latch actuator on nose cargo door

 TASK 52-31-05-004-001
 2.  Nose Cargo Door Latch Actuator Removal (Fig. 401)______________________________________
 A. References
 (1)  
24-22-00/201, Manual Control

 B.
Access

 (1)  
Location Zone
 801 Nose Cargo Door

 C.
Prepare For Removal

 S 864-004
 (1)  
Open the nose cargo door to get access to the latch actuator.

 S 864-005

 (2)  
Open these circuit breakers and attach the DO-NOT-CLOSE tags:

 (a)  
On the Auxilary External 2 Power Center-Right panel P715: 1) 715XX, NOSE CARGO DOOR

 (b)  
On the Power Distribution Center-Right panel P415: 1) 415F16, NOSE CARGO DOOR CONTROL

 (c)  
On the Nose Cargo Door Power panel H122: 1) 122XX, DOOR LIFT 2) 122XX, PULL UP CAM 3) 122XX, LATCHES 1-4R 4) 122XX, LATCHES 1-4L 5) 122XX, LATCHES 5-8R 6) 122XX, LATCHES 5-8L

 D.
Latch Actuator Removal

 S 014-006
 (1)  
For Latch Actuator 5L or 5R, Remove the rain gutter to get access to the actuator.

 S 024-007

 (2)  
For All Latch Actuators Except 7L and 7R,
 Do these steps to remove the latch actuators:

 (a)
Disconnect the actuator electrical connector.

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