747-400 AMM 飞机维护手册 起落架 LANDING GEAR 1(15)

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 (4)  Do the steps that follow that are necessary to close the landing gear doors:
 WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW 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 OR DAMAGE TO EQUIPMENT.
 (a)  Do this task: "Removal of the Door Locks from the Wing Landing Gear" (AMM 32-00-30/201).
 WARNING: MAKE SURE ALL PERSONS AND EQUIPMENT ARE AWAY FROM THE DOOR
_______ OPERATION AREA. A FAST MOVEMENT OF THE DOORS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (b)  Move the ground release handles for the doors for the main landing gear to the DOORS CLOSED position.
 S 862-014
 (5)  
If you must lock the nose landing gear and the body landing gear down, open the circuit breaker that follows and attach a collar:

 (a)  
P7, Overhead Circuit Breaker Panel
 1) 7F24, LANDING GEAR LEVER LOCK

 

 S 862-020
 (6)  Put the switch for Gear Down Dispatch in the Gear Down Dispatch position.
 NOTE: The switch is on the forward, right side of the Electrical
____
 and Electronics compartment.

 TASK 32-00-00-442-007
 4. Airplane Back to Its Usual Condition - Body Landing Gear and Nose Landing
_________________________________________________________________________ Gear Locked Down
________________
 A. Special Tools and Equipment
 (1)  6ME65B00161-1 - Wing and Body Gear Ground Lockpin (2 are necessary)
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 ALL  ú ú 01 Page 207 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 B. Standard Tools and Equipment
 (1)
Fasteners to hold the body gear lockpins (2 of each are necessary)

 (a)  
AN960-1616 - Washer

 (b)  
BACB30LK04-16 - Lockpin Retainer Bolt

 (c)  
AN960-4L - Washer

 (d)  
BACN10JC04 - NUT

 (2)  
Fasteners to lock the nose gear down

 (a)  
BACB30NF7-36 - Nose Gear Lockbolt

 (b)  
AN960-716L - Washer

 (c)  
BACN10JC7 - Nut

 C.
References

 (1)  
AMM 32-00-30/201, Landing Gear Door Locks

 D.
Access

 (1)  
Location Zone
 118 Electrical and Electronics Compartment, RH
 715 Nose Landing Gear
 755 Body Landing Gear, LH
 765 Body Landing Gear, LH

 E.
Procedure

 S 862-041
 (1)  Do one of the two steps that follow to hold the landing gear doors in the open position:
 WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASKS BELOW TO
_______ INSTALL THE DOOR LOCKS ON THE LANDING GEAR DOORS. THE DOORS CAN CLOSE QUICKLY IF YOU DO NOT INSTALL THE DOOR LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (a)  Install the door locks on the doors for the landing gear as follows: 1) Do this task: "Installation of the Door Locks on the Nose
 Landing Gear" (AMM 32-00-30/201).
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 ALL  ú ú 01 Page 208 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 2)  Do this task: "Installation of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).
 WARNING: MAKE SURE ALL PERSONS AND EQUIPMENT ARE AWAY FROM THE DOOR
_______ OPERATION AREA. A FAST MOVEMENT OF THE DOORS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (b)  Move the ground release handles as follows: 1) Move the ground release handle for the doors for the nose landing gear to the DOORS OPEN position.
 2)  Move the ground release handles for the doors for the main landing gear to the DOORS OPEN position.
 S 092-024
 (2)  
Remove the ground locks from the left body landing gear (Fig. 201):
　
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