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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 2) 7F22, LANDING GEAR DSP & CONT PRI
 S 865-000
 (8)  
Do the "Put Safety-Sensitive Systems Back to the Condition Before Air Mode Simulation" task (AMM 32-09-02/201).

 S 715-003

 (9)  
Do a test of the main electric limit switches on the left side with the landing gear extended:

 (a)  
Set the STAB TRIM 2 switch on the control stand to CUTOUT.

 (b)  
Use the STAB TRIM switches on the captain's control wheel to move the stabilizer to 7-8 units of trim.

 (c)  
Hold the STAB TRIM switches on the captain's control wheel to the NOSE DN until the stabilizer stops.

 (d)  
Set the STAB TRIM 3 switch on the control stand to CUTOUT.

 (e)  
Make sure the two stabilizer trim indicators show 0.55-1.05 units of trim.

 (f)  
Set the STAB TRIM 2 and 3 switches on the control stand to ON.

 S 715-005
 (10)
 Do a test of the main electric limit switches on the right side with the landing gear extended:

 (a)  
Set the STAB TRIM 3 switch on the control stand to CUTOUT.

 (b)  
Use the STAB TRIM switches on the captain's control wheel to set the stabilizer at 7-8 units of trim.

 (c)  
Hold the STAB TRIM switches on the captain's control wheel to the NOSE DN until the stabilizer stops.

 (d)  
Set the STAB TRIM 2 switch on the control stand to CUTOUT.

 (e)  
Make sure the two stabilizer trim indicators show 0.55-1.05 units of trim.

 E.
Put the Airplane to its Usual Condition

 S 865-021
 (1)
Use the STAB TRIM ALTN switches on the control stand to set the stabilizer at the neutral rig position (3 units of trim).

 S 865-022

 (2)  
Release the pressure in the hydraulic systems No. 2 and 3 if it is not necessary (AMM 29-11-00/201).

 S 865-023

 (3)  
If the electrical power is not necessary, remove electrical power (AMM 24-22-00/201).

 (4)  
Close the access door (AMM 06-09-05/201).

 S 415-024
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