(2)
Control Surface Protractor - 4MIT65B80307-1
(3)
Control Surface Protractor Stand Assembly - F71292-17
(4)
Spring Scale capacity 0 to 50 pounds
(5)
Antiskid - Autobrake - Auto Speed Brake Tester - F80129-100
REF NO. F70207-( ) DIAMETER (INCHES) LENGTH (INCHES) FUNCTION
S/B-3 -11 0.309-0.311 6.7 +0.25 Ground Spoiler Interlock Valve
B. Prepare Speed Brake Control System for Test
(1)
Connect electrical power to airplane and energize 28-volt dc bus No. 1, bus No. 2 and Battery Bus.
(2)
Provide system A hydraulic power (Ref 27-62-0, MP).
(3)
Place both inboard and outboard antiskid switches to ON. Switches are located on center instrument panel.
(4)
Set aileron trim control knob in zero trim position.
C. Test Speed Brake Control System
(1) Test ground spoiler operation.
(a)
Set speed brake control lever in DOWN position.
1) Press speed brake indicator test switch 3 to reset speed brake control lever actuator.
(b)
Check that all spoilers are full down.
(c)
Move speed brake control lever into ARMED detent.
(d)
Check that all ground spoilers remain full down, and al1 flight spoilers do not extend beyond 1-1/2 degrees.
(e)
Move speed brake control lever aft until ground spoilers extend.
(f)
Check distance that speed brake control lever has moved from the DOWN position. Lever position is either 31 (+ 3) degrees or 2.96 (+ 0.28) inches measured along position indicating Metal-Cal surface.
(g)
Using control surface protractor, check that ground spoilers No. 4 and 5 are 60 (+ 2) degrees up from full down position.
(h)
Check that ground spoiler No. 4 is within 2 degrees of ground spoiler No. 5.
(i)
Using control surface protractor, check that ground spoilers No. 1 and No. 8 are 40 (+ 2) degrees up from full down position.
(j)
Check that ground spoiler No. 1 is within 2 degrees of ground spoiler No. 8.
(k)
Return speed brake control lever toward DOWN position until ground spoilers retract.
(l)
Check speed brake control lever distance from DOWN position. Lever position is either 22 (+ 3) degrees, or 2.10 (+ 0.28) inches measured along position indicating Metal-Cal surface.
(m)
Place airplane on jacks so right main gear oleo is fully extended. Refer to Chapter 7, Jacking.
5A8
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506
May 15/70 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-62-0 Page 515
(n) Set speed brake control lever full aft in the UP position.
(o) Check that ground spoilers do not operate.
(p) Measure and record air pressure in right main gear shock strut. Release all air
pressure after recording value.
(q) Place jack under jack pad on right main gear axle.
CAUTION: DO NOT JACK AT ANY POINT OTHER THAN JACK PAD. SEE
JACKING, CHAPTER 7.
(r) Slowly raise axle jack to compress right main gear shock strut until ground spoiler
interlock valve opens. The ground spoiler panels will move to full up.
(s) Measure the distance that the shock strut inner cylinder is compressed from the fully
extended condition. It should be 1.5 (+1.5/-0.0) inches.
(t) Set speed brake control lever full forward in the DOWN detent. The ground spoiler
panels will retract.
(u) Lower axle jack and allow right main gear shock strut to fully extend. Remove axle
jack.
(v) Check that ground spoiler panels are full down.
(w) Service right main gear shock strut to air pressure recorded in step (p).
(x) Lower and remove jacks.
(y) Test spoiler response time.
1) Rapidly move speed brake control lever from DOWN to UP and check that flight
and ground spoilers actuate from full down to up in less than 1 second.
2) Rapidly move speed brake control lever from UP to DOWN and check that flight
and ground spoilers actuate from up to full down in less than 1 second.
27-62-0 May 15/70
Page 516
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
(2)
Test speed brake lever friction.
(a) Using spring scale at the tip of the speed brake control lever, check that maximum lever loads are as follows: 1) DOWN to FLIGHT DETENT - 20 pounds maximum 2) FLIGHT DETENT to UP - 28 pounds maximum 3) UP to FLIGHT DETENT - 28 pounds maximum 4) FLIGHT DETENT to DOWN - 20 pounds maximum 中國航空網 m.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：737 AMM 飛機維護手冊 飛行操縱 FLIGHT CONTROLS 3(123)
