compression level of puck system on CH-601 w/ Continental O-235

by Jacky Winters

Aug 11

How far should the rudder pedal attachment bar rise up off of the lower bearing block when the airplane is resting on the gear?     I'm trying to adjust the compression clamps.   The instructions say it's normal for the pucks to bulge out between the spacers, but for the life of me I can't get them compressed any more and yet I see no bulging.  My bar rises about 1/2" when plane is resting on the gear.

Thanks everyone!

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    Gary Welch

    Not sure where the concept of "bulging out" came from but honestly that makes no sense. Those pucks are as hard as hockey pucks and there is no way they are "bulging out". You got some bad info on that concept .

    2

    Aug 11

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      John Austin

      I was am early adopter of the puck system on my STOL 750 and have never noticed any bulging of the pucks.  I do have a rather light engine (Jabiru 3300), so perhaps with a much heavier engine I guess they potentially could bulge, but in any case, wouldn't be concerned if they bulged or not!  Looks to me that you're fine with the tubing rising a 1/2" off the notch in the nylon bearing block - all you're trying to accomplish is get those steering arms out of the notch so as to allow the steering to work freely when there's weight on the nose gear.

      John

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      Aug 14