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757 MAINTENANCE MANUAL
 (d)  
11C9, CSEU 2L DC or FLT CONT ELEC 2L DC

 (e)  
11G17, CSEU 1R AC or FLT CONT ELEC 1R AC

 (f)  
11G18, CSEU 1R DC or FLT CONT ELEC 1R DC

 (g)  
11G27, CSEU 2R AC or FLT CONT ELEC 2R AC

 (h)  
11G28, CSEU 2R DC or FLT CONT ELEC 2R DC

 S 862-011
 (7)  
For the SAM, also remove the DO-NOT-CLOSE tags and close these circuit breakers on the overhead circuit breaker panel, P11:

 (a)  
11H11 or 11C5, STAB TRIM LEFT CONT

 NOTE: This circuit breaker has two possible grid locations.
____
 (b)  
11H20, STAB TRIM CONT RIGHT

 (c)  
11J12, ELEVATOR LIMIT

 S 862-012
 (8)  
For the rudder ratio changer module, also remove the DO-NOT-CLOSE tag and close this circuit breaker on the overhead circuit breaker panel, P11:

 (a)  
11G10 or 11D18, RUD RATIO

 NOTE: This circuit breaker has two possible grid locations.
____
 S 442-017
 (9)  
Do the activation procedure for the spoilers if you did the deactivation procedure (Ref 27-61-00).

 S 712-013

 (10)
 Do the procedure, CSEU Modules Installation Test, for the applicable module.

 TASK 27-09-00-712-014
 4.  CSEU Modules Installation Test______________________________
 A. References
 (1)  
AMM 22-00-02/201, Autoflight BITE

 (2)  
24-22-00/201, Electrical Power - Control

 (3)  
27-21-00/501, Rudder and Rudder Trim System - Adjustment/Test

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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757
MAINTENANCE MANUAL

 (4)  
27-61-00/201, Spoiler/Speedbrake Control System

 (5)  
29-11-00/201, Pressurize/Depressurize Main Hydraulic System

 B.
Access

 (1)  
Location Zones
 119/120 Flight Compartment

 C.
Prepare to do a Test of the CSEU Modules

 S 862-018
 (1)  
Supply electrical power (Ref 24-22-00).

 S 862-019

 (2)  
For all modules, make sure these circuit breakers on the overhead circuit breaker panel, P11, are closed:

 (a)  
11C6, CSEU 1L AC or FLT CONT ELEC 1L AC

 (b)  
11C7, CSEU 1L DC or FLT CONT ELEC 1L DC

 (c)  
11C8, CSEU 2L AC or FLT CONT ELEC 2L AC

 (d)  
11C9, CSEU 2L DC or FLT CONT ELEC 2L DC

 (e)  
11G17, CSEU 1R AC or FLT CONT ELEC 1R AC

 (f)  
11G18, CSEU 1R DC or FLT CONT ELEC 1R DC

 (g)  
11G27, CSEU 2R AC or FLT CONT ELEC 2R AC

 (h)  
11G28, CSEU 2R DC or FLT CONT ELEC 2R DC

 S 712-020
 (3)  Make sure there are no faults shown on the front of the CSEU power supply module.
 NOTE: A faultball will be yellow if it is latched to show
____ there is a fault in the module. The faultball will be black if it is not latched which shows there is no fault in the module.
 D. Do a System Test for the Spoiler Control Modules (SCMs)
 S 862-046
 WARNING: KEEP PERSONS AND EQUIPMENT AWAY FROM ALL CONTROL SURFACES WHEN
_______ HYDRAULIC POWER IS SUPPLIED. INJURY TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR WHEN HYDRAULIC POWER IS SUPPLIED.
 (1)  Pressurize the left, center and right hydraulic systems and reservoirs (Ref 29-11-00/201).
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757 MAINTENANCE MANUAL
 (2)  S 282-047Make sure the control wheel is in the neutral position.
　
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