B737 Aileron transfer mechanism
Good evening,
This afternoon we had a discussion about the aileron transfer mechanism and what the FO cables AA and AB R/H are actually 'doing' during normal (non-impeded) movement of the the yokes...
Are the cables 'floating' (moving) a tad amount during normal roll control movement or are they actually moving the same FULL amount as the L/H AA/AB cables?
I understand at 117 LBS('ish) the transfer mechanism disengages and allows the spoiler control drum to affect FULL movement into the spoiler mechanism (FO yoke only) after 12 degrees is reached thru the R/H AA and AB cables but information is somewhat sketchy as to whether the cables are normally moving a slight amount and do not move until the 12 degree turn thru is accomplished? We haven't had much work with the transfer mechanism besides its funct test during C-Checks... no one here seems to have messes with them maintenance wise beyond that.
Would appreciate some thoughts/clarification on it. Have read the SSM and AMM. Did not find anything relevant in the CMM.