(a)
Open the grease fitting access covers on the aft surface of the spoiler mixer (Fig. 503).
(b)
Move the speed brake lever to the DOWN position.
(c)
Turn the captain's aileron control wheel counterclockwise 87 degrees from the neutral position.
(d)
Look at the spoiler mixer cam through the left grease fitting access cover. 1) Make sure the left cam follower is on the maximum rise part
of the spoiler mixer.
(e)
Turn the control wheel to the neutral position.
(f)
Turn the control wheel clockwise 87 degrees from the neutral position.
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A 737-300/400/500MAINTENANCE MANUAL
(g)
Look at the spoiler mixer cam through the right grease fitting access cover. 1) Make sure the right cam follower is on the maximum rise
part of the spoiler mixer.
(h)
Turn the control wheel to the neutral position.
(i)
If the cam followers were not on the maximum rise when you turned the control wheel, adjust the SBA and SBB cables (Fig. 507): 1) Use the turnbuckles to make the cable SBB shorter by
one-half turn and make the cable SBA longer by one-half turn.
NOTE: The cable SBB is the lower cable on the speed brake
____ quadrant on the ratio changer. When you look forward, the speed brake quadrant will turn clockwise when you tighten the cable SBB.
2) Make sure the cable tension is in the limits shown in Fig. 507.
NOTE: After the adjustment is it not necessary for the
____ rig pin to fit in the rig pin hole.
3) Make sure the cam followers are on the maximum rise when you turn the control wheel. 4) Install the lock clips on the turnbuckles.
(j) Close the two grease fitting access covers.
S 735-033
(9)
Do the system test of the spoiler control system.
G.
Put the Airplane Back to Its Usual Condition
S 865-034
(1)
Remove the systems A and B hydraulic power (Ref 27-61-00/201).
S 085-035
(2)
Remove the protractor and the protractor mount from the captain's aileron control wheel.
(3)
Remove the electrical power (Ref 24-22-00/201).
S 865-036
TASK 27-61-00-735-003
4. System Test - Spoiler Control System
____________________________________
A. General
(1) This procedure does a test of the operation of the flight spoilers No. 2, 3, 6 and 7. Refer to 27-62-00/501 for a test of the speed brakes and for the operation of the flight spoilers as speed brakes.
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TURNBUCKLES
TO MAKE SURE YOU GET THE CORRECT CABLE TENSION, PERMIT THE AIRFRAME TEMPERATURE TO STABILIZE (+/-5 DEGREES) FOR A MINIMUM OF ONE HOUR.
YOU MUST ADJUST THE TENSION IN THE CABLES WHEN THE TENSION IS |15 POUNDS FROM THE VALUE IN THE TABLE.
Speed Brake Control Cable Locations and Cable Tension
Figure 507
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737-300/400/500MAINTENANCE MANUAL
(2)
The dimensions for checks are for Airplanes off the jack. Spoiler adjustments made while on the jacks can change when removed from the jacks.
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