S 865-007

 (5)  
Make sure the right and left spoiler position pointers on the EICAS status page align with the lower scale mark.

 S 715-008

 (6)  
Do this test of the spoiler position indicating system:

 (a)  
Turn the control wheels clockwise to stop. 1) Make sure the left spoiler position pointer aligns with the lower scale mark.

 2)  Make sure the right spoiler position pointer moves to the higher scale mark.

 (b)  
Turn the control wheels counterclockwise to stop. 1) Make sure the left spoiler position pointer moves to the higher scale mark.

 2)  Make sure the right spoiler position pointer moves to the lower scale mark.

 (c)  
Move the control wheels to the neutral position.

 (d)  
Make sure the two spoiler position pointers align with the lower scale marks.

 S 865-009
 (7)  
If the hydraulic power is not necessary, do this task: "Remove Hydraulic Power" (AMM 29-11-00/201).

 S 865-010

 (8)  
If the electrical power is not necessary, do this task: "Remove Electrical Power" (AMM 24-22-00/201).

 TASK 27-68-00-805-011
 3.  Adjustment - Spoiler Position Indicating System_______________________________________________
 A.  Special Tools and Equipment
 (1)  MS20392-4C Rig Pin or equivalent diameter rod (0.309-0.311 inches) (7.849-7.899mm)
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747-400
MAINTENANCE MANUAL

 B. References
 (1)  
AMM 24-22-00/201, Manual Control

 (2)  
AMM 27-51-00/201, Trailing Edge Flap System

 (3)  
SSM 27-68-01

 (4)  
WDM 27-68-11

 C.
Access

 (1)  
Location Zone
 582 No. 4 Spoiler
 685 No. 12 Spoiler

 D.
Procedure

 S 865-012
 (1)  Do this task: "Supply Electrical Power" (AMM 24-22-00/201).
 S 865-028
 WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE LE AND TE
_______ FLAPS AND FLAP DRIVE MECHANISMS BEFORE YOU MOVE THE FLAP CONTROL LEVER. WITH HYDRAULIC POWER REMOVED, THE FLAPS WILL MOVE AUTOMATICALLY BY ELECTRICAL POWER WHEN YOU MOVE THE FLAP CONTROL LEVER. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (2)  
Do this task to extend the TE flaps to the 30-unit position: "Trailing Edge Flap Extension" (AMM 27-51-00/201).

 S 865-027

 (3)  
Do this task: "Trailing Edge Flap Deactivation" (AMM 27-51-00/201).

 S 865-015

 (4)  
Make sure the No. 4 and No. 12 spoilers are in the full down position.

 S 865-016

 (5)  
Set the FLT CONTROL HYD POWER WING switches on the P461, Pilots' Overhead Maintenance Panel in SHUTOFF.

 (a)  
Make sure the four VALVE CLOSED lights come on.

 S 865-017
 (6)  
Make sure you close these circuit breakers:

 (a)  
P6, Main Power Distribution Panel
 1) 6J21, ALRN/SPLR IND

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747-400 MAINTENANCE MANUAL
 2) 6J20, ALRN/SPLR SENSOR
 S 865-018
 (7)  
Open these circuit breakers and attach DO-NOT-CLOSE tags:

 (a)  
P180, DC Power Distribution Panel
 1) 180H7, LATERAL CONT VLV SYS 1
 2) 180E6, LATERAL CONT VLV SYS 2
 3) 180H22, LATERAL CONT VLV SYS 3
 4) 180E21, LATERAL CONT VLV SYS 4

 S 015-019
　
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