(3)
Install rod end bolt and secure with washer, nut and cotter pin.
(4)
Tighten checknut and check for proper rod end thread engagement. Rod end threads shall be visible in inspection hole.
(5)
Remove rigging tool.
J. Install Aileron Spring Cartridge
(1)
Check that rigging pins A/S-3 and A/S-4 are installed.
(2)
Connect aileron spring cartridge to lower crank. Secure rod end bolt with spacer, washer, nut and cotter pin.
K. Remove all rigging pins.
L. Adjust spoiler mixer output cam.
(1)
Open grease fitting access covers on aft surface of spoiler mixer (Fig. 401).
(2)
Set speed brake control lever in DOWN detent.
(3)
Rotate captain's control wheel counterclockwise 87 degrees from neutral.
(4)
Check that left cam follower is on maximum rise portion of spoiler mixer cam when viewed through left grease fitting access hole.
(5)
Return captain's control wheel to neutral.
(6)
Rotate captain's control wheel clockwise 87 degrees from neutral.
(7)
Check that right cam follower is on maximum rise portion of spoiler mixer cam when viewed through right grease fitting access hole.
(8)
Return captain's control wheel to neutral.
(9)
If checks in steps (4) and (7) are not met use turnbuckles to adjust SBA and SBB cables: (See figure 402.)
(a)
Shorten SBB cable by one-half turn and lengthen SBA cable by one-half turn.
NOTE: The SBB cable is the lower cable on speed brake quadrant on ratio changer. Speed brake quadrant should rotate clockwise when tightening SBB cable when looking forward.
(b)
Check that cable tension is within values in figure 402 and repeat steps (3) through (8).
NOTE: After adjustment rigging pin SB-2 need not fit in rigging pinhole.
(c)
Install turnbuckle-locking clips.
(10)
Install two grease fitting access covers.
500
Feb 20/90 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-61-21 Page 405
M. Test spoiler mixer operation (AMM 27-61-21/501).
500
27-61-21 Page 406 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. May 01/00
G33831
500 Speed Brake Control System Turnbuckle Locations and Cable Tension
Jun 20/87 Figure 402 27-61-21
Page 407
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
SPOILER MIXER - ADJUSTMENT/TEST
1. Spoiler Mixer Test
A. Equipment and Materials
(1)
Control Surface Protractors - 4MIT65B80307-1 (preferred) F52485-500 (optional) (3 required)
(2)
Control Surface Protractor Stand - F71292-17 (optional)
(3)
Aileron Control Wheel Protractor Mount - F72790 (2 required)
(4)
Rigging Pins Kit - F70207-3, -52, -61, or -84:
REF NO. F70207-( ) DIAMETER (INCHES) LENGTH (INCHES) FUNCTION
A/S-4 -11 0.309-0.311 6.7 +0.25 Aileron bus drum
B. Prepare for Test
(1)
Install aileron control wheel protractor mount and control surfaces protractor on captain's aileron control wheel.
(2)
Install control surface protractor stands and protractors on spoilers No. 2 and 7.
NOTE: Protractors may be hand-held on spoilers instead of using stands.
(3)
Provide electrical power.
(4)
Provide systems A and B hydraulic power (Ref 27-61-0 MP).
(5)
Set aileron in neutral. Aileron is in neutral when rigging pin A/S-4 can be freely inserted and removed. Remove rigging pin.
(6)
Place speed brake control lever in DOWN position to lower spoilers.
C. Test Spoiler Mixer
(1)
Rotate captain's aileron control wheel 87 degrees counterclockwise.
(2)
Check that spoiler No. 2 is 38 +2 degrees up from zero position.
(3)
From wheel position in previous step rotate control wheel clockwise and check that all spoilers are full down when wheel is positioned at 4 +2 degrees counterclockwise from zero.
(4)
Continue clockwise rotation of control wheel to 87 degrees clockwise position.
(5)
Check that spoiler No. 7 is 38 +2 degrees up from zero.
(6)
From wheel position in previous step rotate control wheel counterclockwise and check that all spoilers are full down when the wheel is positioned at 4 +2 degrees clockwise from zero.
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