(2)  
An operational test of the crew restraint system that is installed on each flight compartment seat.

 (3)  
a visual inspection/check of the condition, the installation, and the operation of each seat.

 (4)  
an adjustment of the forward and aft microswitches on the captain and first officer's seats.

 B.  Each task applies to the captain, the first officer, the first observer, and the second observer seats, unless the instructions in the task tell you differently.
 C.  To complete the operation test on the flight compartment seats, you must do the tasks that follow:
 (1)  
Do an Operation Test of the Flight Compartment Seats

 (2)  
Do an Operational Test of the Crew Restraint System.

 TASK 25-11-00-702-001
 2.  Do an Operation Test of the Flight Compartment Seats
____________________________________________________
 A.  General
 (1)  
The function of this task is to make sure the seat control levers for each flight compartment seat operate correctly.

 (2)  
This task contains these tests:

 (a)  
Forward and aft travel test - manual operation (first observer seat)

 (b)  
Forward and aft travel test - electrical operation (captain and first officer seats)

 (c)  
Vertical travel test - manual operation (captain, first officer and first observer seats)

 (d)  
Vertical travel test - electrical operation (captain and first officer seats)

 (e)  
Lateral travel test - manual operation (first observer seat)

 (f)  
Seat recline test (each seat)

 (g)  
Thigh support test (captain and first officer seats)

 (h)  
Armrest test (each seat)

 (i)  
Lumbar support test (each seat)

 (3)  
Unless said differently, each test is to be done with a person who weighs a minimum of 170 pounds.

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 ALL  ú ú 03 Page 201 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 B.  Standard Tools and Equipment
 (1)  
Stop watch or timer

 (2)  
Tape measure or scale

 (3)  
Thickness (Feeler) gage, 0.03 to 0.30-inch range

 C.  Access
 (1)  Location Zones
 221 Control Cabin, Left
 222 Control Cabin, Right

 D.  Prepare for the electrical operation tests for the captain and the first officer seats.
 S 862-002
 (1)  
Supply electrical power (Ref 24-22-00/201).

 S 212-003

 (2)  
Make sure the 414D8 CAPT PWR SEAT circuit breaker on the P414 Power Distribution Center Panel-Left is closed.

 S 212-036

 (3)  
Make sure the 415H32 F/O PWR SEAT circuit breaker on the P415 Power Distribution Center Panel-Right is closed.

 E.  Do this forward and aft travel test (manual operation) for the first observer seat.
 S 712-037
 (1)  
Operate the control lever, for manual foward and aft travel, while you move the seat to the most aft position.

 S 712-038

 (2)  
Release the control lever.

 S 712-039

 (3)  
Make sure the seat is locked in the most aft position.

 S 712-040

 (4)  
Operate the control lever while you move the seat to the most forward position.

 (5)  
Release the control lever.

 (6)  
Make sure the seat is locked in the most forward position.

 S 712-043

 (7)  
Operate the control lever while you move the seat aft to the middle position.

 S 712-041
 S 712-042
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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 ALL  ú ú 03 Page 202 ú Feb 15/99
　
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