(5)  
Place both inboard and outboard antiskid switches to ON.

C.  Test Spoiler Ratio Changer
(1)  
Test flight spoiler response at zero speed brake.

(a)  
Set aileron in neutral. Aileron is in neutral when rigging pin A/S-4 can be freely inserted and removed. Remove rigging pin.

(b)  
Place speed brake control lever in DOWN position.

(c)  
Rotate captain's control wheel clockwise and check that spoiler No. 7 begins to rise at 9 +1 degrees clockwise from zero.

(d)  
Continue rotating captain's control wheel 87 degrees clockwise and check that: 1) Spoiler No. 7 is 38 +2 degrees up from zero.

2)  Spoilers No. 2 and 3 are full down.

(e)  
From wheel position in previous step, return control wheel counterclockwise and check that spoilers No. 7 starts down when wheel is positioned at 70 degrees minimum clockwise from zero.

(f)  
From wheel position in previous step, return control wheel counterclockwise and check that all spoilers are full down when wheel is positioned at 4 + 2 degrees clockwise from zero.

(g)  
Rotate control wheel counterclockwise and check that spoiler No. 2 begins to rise at 9 + 1 degrees counterclockwise from zero.

(h)  
Continue rotating control wheel to 87 degrees counterclockwise and check that: 1) Spoiler No. 2 is 38 + 2 degrees up from zero. 2) Spoilers No. 6 and 7 are full down.

(i)  
From wheel position in previous step, return control wheel clockwise and check that spoiler No. 2 starts down when wheel is positioned at 70 degrees minimum clockwise from zero.

(j)  
From wheel position in previous step, return control wheel clockwise and check that all spoilers are full down when wheel is positioned at 4 + 2 degrees clockwise from zero.

(2)  
Test spoiler response with speed brake control system.

(a)  
Set aileron trim in neutral. Aileron is in neutral when rigging pin A/S-4 can be freely inserted and removed.

(b)  
Set speed brake control lever in DOWN detent.

(c)  
Check that all flight and ground spoilers are full down.

(d)  
Move speed brake control lever into ARMED detent.

(e)  
Check that all ground spoilers remain down, and flight spoilers do not extend beyond 1-1/2 degrees.

(f)  
Move speed brake control lever aft until ground spoilers extend.

(g)  
Check that speed brake control lever is either 31 + 3 degrees, or 2.96 + 0.28 inches measured along position indicating Metal-Cal surface, from DOWN position.

(h)  
Using control surface protractor, check that ground spoilers No. 4 and No. 5 are 60 + 2 degrees up from down position.

(i)  
Check that ground spoiler No. 4 is within 2 degrees of ground spoiler No. 5.

(j)  
Using control surface protractor, check that ground spoilers No. 1 and No. 8 are 40 + 2 degrees up.

(k)  
Check that ground spoiler No. 1 is within 2 degrees of ground spoiler No. 8.

(l)  
Return speed brake control lever toward DOWN position until ground spoilers retract.

(m)  
Check that speed brake control lever is either 22 + 3 degrees, or 2.10 + 0.28 inches measured along position indicating Metal-Cal surface, from DOWN position.

(n)  
Set speed brake control lever so that spoiler No. 3 is 15 (+ 1) degrees up from zero position. Check that spoilers No. 2, No. 6 and No. 7 are within + 0.5 degree of spoiler No. 3 and each other.

(o)  
Set speed brake control lever in FLIGHT DETENT position and check that: 1) Spoiler No. 2 is 26 + 2 degrees up from zero position. Record value. 2) Spoiler No. 7 is within + 1 degree of spoiler No. 2 in step 1).

(p)  
Place speed brake control lever in UP position.

(q)  
Using control surface protractors, check that: 1) Spoiler No. 2 is 39 + 3 degrees up from zero. Record value. 2) Spoiler No. 7 is within + 2 degrees of spoiler No. 2 in step 1) with a minimum

angle of 36 degrees up from zero. 3) Spoiler No. 3 fairs with spoiler No. 2 within + 0.25 inch. 4) Spoiler No. 6 fairs with spoiler No. 7 within + 0.25 inch.

(r)  
Set captain's control wheel 87 degrees counterclockwise from zero and check that: 1) Spoiler No. 2 is 39 + 3 degrees up from zero. Record value. 2) Spoiler No. 7 is partially raised.

(s)  
Set captain's control wheel 87 degrees clockwise from zero and check that: 1) Spoiler No. 2 is partially raised. 2) Spoiler No. 7 is within + 1 degree of spoiler No. 2 in step (r)1).

(t)  
Place speed brake control lever in DOWN position.

(3)  
Test speed brake lever friction.

500 
Feb 01/95  BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  27-61-31 Page 501 
　
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