Very Hard Stabilizer Movement

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Very Hard Stabilizer Movement

Postby skydroll » 16 May 2007, 17:25

When we use the stabilizer trim wheel for manuel control to stabilizer, we could turn wheel very difficulty. A/C(b737-800) at C check and we have already changed stabilizer screwjack with newone and winglet modification has been applied. After this job problem occured. We adjusted to stabilizer cables' tension but nothing changed.
skydroll
 
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Postby sjap » 16 May 2007, 17:38

Hello Skydroll:
-Check the tension of the chain in the lower nose comp, maybe it's adjusted too high.
-Check the lower side of the cabledrum in the tail comp. Especially the installation of the washer, see if it is installed between the drum and the bearing in the support frame. Maybe the drum is running against the lower bearing plate. Evidence of this can be found if you find metal-shavings around this bearing. It happens a lot with jackscrew replacements...

Best regards
sjap
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Postby Muttley » 16 May 2007, 21:19

Does the 800 have the same stab trim brake system as the classic? if so, maybe the brake is binding? look at my video here :arrow: http://www.veoh.com/videos/v382244KFJh32DJ
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We solved problem

Postby skydroll » 17 May 2007, 17:15

Hi; we replaced stabilizer screwjack again with newone then problem solved. Thanks for your intrest...
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