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 32-51-09
 ALL  ú ú 01 Page 412 ú Feb 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 (h)
Make sure the status of the following bits for label 273 is as

 (i)  
Push the PREVIOUS PAGE button and go to page 1.

 (j)  
Make sure the status of the following bits for label 271 is as follows:

 follows:
 ALTERNATE LOCK SWITCHES_______________________  BIT___  BIT STATUS__________  DESCRIPTION___________
 R BODY GR STRNG LEFT  26  1  LOCKED
 R BODY GR STRNG RIGHT  27  1  LOCKED
 L BODY GR STRNG RIGHT  28  1  LOCKED
 L BODY GR STRNG LEFT  29  1  LOCKED

 PRIMARY LOCK SWITCHES_____________________ BIT __________ DESCRIPTION
___ BIT STATUS ___________ R BODY GR STRNG LEFT 26 1 LOCKED R BODY GR STRNG RIGHT 27 1 LOCKED L BODY GR STRNG RIGHT 28 1 LOCKED L BODY GR STRNG LEFT 29 1 LOCKED
 S 864-048
 (18)
 Move the captain's tiller for a right-hand turn (CW) until the nose gear angle shown on the decal on the steering collar reads 23.75 to 24 degrees.

 S 744-049

 (19)
 Do a BITE check of the lock switches with the tiller positioned for a right-hand turn.

 (a)  
Make sure the status of the following bits for label 271 is as follows:

 PRIMARY LOCK SWITCHES_____________________ BIT __________ DESCRIPTION
___ BIT STATUS ___________ R BODY GR STRNG LEFT 26 0 UNLOCKED R BODY GR STRNG RIGHT 27 1 LOCKED L BODY GR STRNG RIGHT 28 1 LOCKED L BODY GR STRNG LEFT 29 0 UNLOCKED
 (b)  
Push the PREVIOUS PAGE button and go to page 1.

 (c)  
Make sure the status of the following bits for label 273 is as follows:

 ALTERNATE LOCK SWITCHES_______________________ BIT __________ DESCRIPTION
___ BIT STATUS ___________ R BODY GR STRNG LEFT 26 0 UNLOCKED R BODY GR STRNG RIGHT 27 1 LOCKED L BODY GR STRNG RIGHT 28 1 LOCKED L BODY GR STRNG LEFT 29 0 UNLOCKED
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 32-51-09
 ALL  ú
 ú  01  Page 413
 ú  Feb 15/98 

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 864-050
 (20)
 Move the captain's tiller for a left-hand turn (CCW) until the nose gear angle shown on the decal on the steering collar reads 23.75 to 24 degrees.

 S 744-051

 (21)
 Do a BITE check of the lock switches with the tiller positioned for a left-hand turn.

 (a)  
Make sure the status of the following bits for label 273 is as follows:

 ALTERNATE LOCK SWITCHES_______________________ BIT __________ DESCRIPTION
___ BIT STATUS  ___________
 R BODY GR STRNG LEFT 26 1 LOCKED
 R BODY GR STRNG RIGHT 27 0 UNLOCKED
 L BODY GR STRNG RIGHT 28 0 UNLOCKED
 L BODY GR STRNG LEFT 29 1 LOCKED
 (b)  
Push the NEXT PAGE button and go to page 2.

 (c)  
Make sure the status of the following bits for label 271 is as follows:

 PRIMARY LOCK SWITCHES_____________________ BIT __________ DESCRIPTION
___ BIT STATUS  ___________
 R BODY GR STRNG LEFT 26 1 LOCKED
 R BODY GR STRNG RIGHT 27 0 UNLOCKED
 L BODY GR STRNG RIGHT 28 0 UNLOCKED
 L BODY GR STRNG LEFT 29 1 LOCKED
 S 864-052
 (22)
 Return the captain's tiller to neutral.

 S 864-053

 (23)
 Remove system No. 1 hydraulic power (AMM 29-11-00/201).

 S 864-054

 (24)
 Remove electrical power (AMM 24-22-00/201).

 G.
Restore Airplane to Normal

 (1)  
Connect the nose gear torsion links (AMM 32-21-03/201).

 S 414-056

 (2)  
Connect the body gear torsion link to the actuators
 (AMM 32-53-11/201).

 S 414-057

 (3)  
　
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