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757
MAINTENANCE MANUAL

STABILIZER BALLSCREW ACTUATOR
A

1 TO USE THE GAGE ASSEMBLY TO SET DIMENSION B TO
15.89 |0.01 INCHES (403.60 |0.25 mm),
DO THE STEPS THAT FOLLOW:

1.
 PUT THE GAGE ASSEMBLY AGAINST THE BALLSCREW
SO THAT THE BOLT HEADS ARE ON THE SHOULDERS
OF THE UPPER AND LOWER STOPS

2.
 MAKE SURE THAT THE FEELER BLADE CAN BE PUT
BETWEEN THE BOLT HEAD OF THE GAGE ASSEMBLY AND
ON THE SHOULDER OF THE UPPER STOP
(THIS WILL PREVENT PRELOADING)

Measurement of Stabilizer Dimension B
Figure 402

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757 MAINTENANCE MANUAL
 G. Test for the Elevator Feel System and Autopilot Authority
 S 714-042
 (1)  
Do the test that follows for pitot-static leaks:

 (a)  
Do the test for the auxiliary pitot systems No. 1 and 2 line connections to the feel computer (AMM 34-11-00/201).

 (b)  
Do a visual check to make sure the static line connections on the feel computer are installed correctly.

 S 714-043
 (2)  
Do the the EICAS message test for the elevator feel system
 (AMM 27-31-00/501).

 S 714-044

 (3)  
Do the test for the forces in the elevator feel system
 (AMM 27-31-00/501).

 S 714-045

 (4)  
Do the MCDP ground test 08-SERVO ELEV (AMM 22-00-02/201).

 H.
Put the Airplane Back to Its Usual Condition

 S 864-023
 (1)  
Remove the DO-NOT-CLOSE tags and close these circuit breakers on the P11 panel:

 (a)  
11B19, STAB TRIM ALT (IF INSTALLED)

 (b)  
11H11 or 11C05, STAB TRIM CONT L

 (c)  
11H17, FLT CONT SHUTOFF TAIL LEFT

 (d)  
11H18, FLT CONT SHUTOFF TAIL CTR

 (e)  
11H20, STAB TRIM CONT R

 (f)  
11H28, FLT CONT SHUTOFF TAIL RIGHT

 S 864-024
 (2)  
Put the L, R, and C FLT CONTROL SHUTOFF switches on the P61 panel to the ON position.

 S 864-025

 (3)  
Remove the power from the left, right, and center hydraulic systems (AMM 29-11-00/201).

 (4)
Remove electrical power if it is not necessary (AMM 24-22-00/201).

 S 414-027

 (5)  
Close the access door for the forward stabilizer compartment, 311AL (Ref 06-42-00).

 S 864-026
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757 MAINTENANCE MANUAL
 ELEVATOR NEUTRAL SHIFT AND OVERRIDE MECHANISM - REMOVAL/INSTALLATION
____________________________________________________________________
 1.  General_______
 A.  This procedure contains steps to remove and install the neutral shift and override mechanism.
 TASK 27-31-21-024-001
 2.  Remove the Neutral Shift and Override Mechanism_______________________________________________
 A.  Equipment
 (1)  
Rig Pins from Set B20003-XX (Ref 20-10-24):

 (a)  
E/ST7 - P/N B20003-21

 (b)  
E/ST10 - P/N B20003-21

 (2)  
Gage Assembly - B27039-3, Part of the Elevator
 and Stabilizer Rigging Equipment, B27039-1

 B.  
References

 (1)  
　
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：757 AMM 飛機維護手冊 飛行操縱 FLIGHT CONTROLS 3(127)