Subject: RV4 control column adjustment.
From: Rotary Engine
Date: 6/16/2011, 4:53 AM
To: AAA Put this in the To box


 Brian, Dave, help!

 I can't seem to get this adjusted. If I leave the nuts slightly loose
 there is zero friction in the aileron action.
 If I tighten either the front or rear ball joint
 nuts noticeable  friction is added to the control.

 If this is described in the plans what page number?

 BTW I changed Mike's bracket as I did not feel safe
 with just a non locking jam nut on there with no
 threads showing.

 Paul Lamar

 Well, i can't quite understand the situation from the pictures, but I
 can say this, there should be no friction in the system from any of
 those brackets, and the nuts should be secure.  Maybe missing a
 washer or two?  It should be in the plans, though very occasionally
 you must do things different than called out in the plans.

 --
 David Leonard

 Turbo Rotary RV-6 N4VY
 http://N4VY.RotaryRoster.net
 http://RotaryRoster.net

 Have not seen drawings or pics, but where two bearings are used on a
 single bolt, check that a spacer goes between them.

 Lewis.

 Here is the dwg.

 Paul Lamar

 Paul,
 I don't quite understand- where do you have friction- when you move the
 stick laterally?
 Brian Trubee

 I am not sure where it was but I got it fixed today. Apparently the angle
 of the bracket had something do do with it. I bent it down so the angle
 was about 95 degrees and everything started working OK. Go figure.

 Paul Lamar


Paul,

Attachment 4; the bearing ball appears to be pushed to the left and the rod
end looks close to rubbing on the flanges. Any side thrust will cause binding
and wear the rod end. It may be that you removed some of the tension by
bending the bracket.

Dale Davies

The ball joint was entering the bracket on the control column at the
wrong angle. The edge of the ball joint was rubbing on the bracket.

Paul Lamar


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