Discus 2 rudder stiff help please

On Monday, 26 August 2019 16:47:27 UTC+3, Bravo 8 wrote:
On Monday, August 26, 2019 at 7:55:09 AM UTC-4, India November wrote:
The rudder on my D2b has become very stiff on its hinges during this season. I disconnected the cables at the rudder horn, and it's clear the problem is in the rudder not elsewhere in the control circuit. Removed mylar seals without effect. No visible damage to the rudder, and no foreign objects visible between rudder and fin. Before I remove the rudder, has anyone out there encountered a similar problem? Glider has 650hrs TT, always hangared.

Thanks in advance for all suggestions!
Ian IN

I've got an ASW19B with a similar issue. I've adjusted the nut at the bottom of the rudder with no affect. I too would appreciate any suggestions. And thanks!

There is a brass bushing inside lower hinge. This has worn short over time. You notice this by tightening the lower nut, rudder has no vertical play anymore and bolt is crushing the hinge. Replace brass bushing and you are good to go. Note, rudder must ALWAYS have vertical play, even when nut is tight. If there is no play, bushing is not doing it's job.