REFLECTOR: Sticking rudder pedals

[Lou Stedman]

I recently did a retrofit on my STD with the new rudder/brake pedal. I had no problems at all. Can you put a straight edge on to see if there is any bends in the tube?

From: Geoff Gerhardt 
Sent: Sunday, November 13, 2011 7:14 PM
To: Velocity Aircraft Owners and Builders list 
Subject: REFLECTOR: Sticking rudder pedals

I have the toe break rudder pedal setup.  I just setup my rudders yesterday and found that the co-pilot left rudder pedal doesn't work.  Without the rudders attached both pedals, all the pedals work smooth, but as soon as I connected the rudder cables to the pedal system, the pilot pedals work nice and smooth and can exercise the rudders thru their entire range, and the co-pilot right rudder pedal works just fine, but when I try to depress the co-pilot left pedal, it just binds.  It will only depress down if I either pull on the right rudder pedal (either P or CP), or pull on the left rudder cable.  The only thing I can think is that the tube-in-a-tube rudder actuation mechanism is binding as the co-pilot pedal is pushed.  As I mention, it works fine as the pedal is not depressing against a load (i.e. with the rudder cable disconnected), so I'm guessing there's some torquing of the mechanism going on that is causing it to bind under load.  I don't see an easy way to get lubrication in between the tubes that might help relieve some of this binding.  Is this a problem others have experienced? 

Thanks.

Geoff


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