2
YOU MUST ADJUST THE TENSION IN THE CABLES
WHEN THE TENSION IS |15 POUNDS FROM THE
VALUE IN THE TABLE.

Speed Brake Control System Turnbuckle Locations and Cable Tension Figure 402
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A
737-300/400/500MAINTENANCE MANUAL
 2) Make sure the cable tension is in the limits shown in Fig. 402. 3) Do the steps again to make sure the cam followers are on the maximum rise part of the cam on the spoiler mixer.
 NOTE: After the adjustment, it is not necessary for the
____ rig pin S/B-2 to fit in the rig pin hole.
 (l)
Install the lock clips on the turnbuckles.

 (m)
Install the two grease fitting access covers.

 S 724-040
 (9) Do the functional test of the spoiler mixer (Ref 27-61-21/501).
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737-300/400/500MAINTENANCE MANUAL
 SPOILER MIXER - ADJUSTMENT/TEST
_______________________________
 1.  General
_______
 A.  There are two tasks in this procedure. There is a functional test of the spoiler mixer. There is also a task for the functional test of the no-back torque of the spoiler ratio changer.
 TASK 27-61-21-725-001
 2.  Spoiler Mixer Functional Test
_____________________________
 A.  Special Tools and Equipment
 (1)  
4MIT65B80307-1 Control Surface Protractor (3 necessary)

 (2)  
F71292-17 Control Surface Protractor Stand (optional) (2 necessary)

 (3)  
F72790 Aileron Control Wheel Protractor Mount (2 necessary)

 (4)  
Rig Pins A/S-4 - 0.311 +0.000/-0.002 inch diameter, 6.7 |0.25-inches long (F70207-11)

 NOTE: The rig pin is a part of the kit F70207-69, -78, or -83.
____
 B.  References
 (1)  
AMM 24-22-00/201, Manual Control

 (2)  
AMM 27-61-00/201, Spoiler Control System

 C.  
Access

 (1)  
Location Zone 101, 102 Control Cabin 307, 407 Wing Trailing Edge Outboard Flaps and Spoilers

 D.  
Prepare for the Functional Test

 S 485-002
 (1)  
Install the protractor mount and the protractor on the captain's aileron control wheel.

 S 485-003

 (2)  
Install the protractor stands and the protractors on the spoilers No. 2 and 7.

 NOTE: You can use hand held protractors on the spoilers.
____
 S 865-004
 (3)  
Supply the electrical power (AMM 24-22-00/201).

 (4)
Supply the systems A and B hydraulic power (AMM 27-61-00/201).

 (5)  
Move the ailerons to the neutral position.

 S 865-005
 S 865-006
 NOTE: The aileron is in the neutral position when you can easily
____ install the rig pin A/S-4 in the aileron bus drum.
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737-300/400/500MAINTENANCE MANUAL
 S 085-007
 (6)  
Remove the rig pin.

 S 865-008

 (7)  
Move the speed brake lever to the DOWN position.

 E.
Do the Functional Test

 S 725-009
 (1)  
Turn the captain's aileron control wheel to the 87 degrees
 counterclockwise position.

 (a)  
Make sure that the spoiler No. 2 is up 38 |2 degrees.
　
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