Zenith Aircraft Builders and Flyers
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Rudder cables on a ch750
I am making up the rudder cables on the ch750 and I noticed that when the nose wheel strut reaches its full travel left and right against the nylon bearing block that the rudder does not reach the stops that are on the fuselage sides. Is this normal? I feel that I will not be able to achieve full rudder travel. I am wondering if I should remove material from the bearing block so the rudder will hit its stops.Also I noticed that If I adjust the cables for proper tension when the nose wheel strut is fully extended then as the nose wheel strut moves up the rudder cables go slack. Thanks to anyone for their input.
Replies to This Discussion
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Permalink Reply by Gary Motley on
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You are correct. The bearing block area may need to be shaved in order to obtain full rudder deflection. I had the same problem with my CruZer. Also, you may be able to adjust the rudder cable tension by adjusting the rod end bearings from the rudder pedal to nose strut.
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Permalink Reply by David Shutske on
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Sounds good. I was afraid that I really messed something up. Thanks
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Permalink Reply by Loren Warner on
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Assuming all parts are equal, you will not be able to attain full rudder deflection per the plans for a number of reasons. You'll be lucky to get 19 degrees deflection even after grinding down on the bearing block and nose gear channel before the steering rod's jam nut contacts the slide cover at the firewall. Installing the right brake cylinder support brackets per the plans also restricts rudder/nose wheel travel, as well as full brake cylinder plunger travel. The right fix for the right support bracket's is to turn them 180 degrees.
Much of this was discussed in the 750 STOL forum. Forum member and friend Norm Neuls is currently working on a simple steering rod extension which will allow for even more travel.
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Thanks so much
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Permalink Reply by Anthony Morris on
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Hi I am in UK with same problem,I can see if hat the lower part of brake cylinder attachment jams on pivot bracket,can I just turn them around??180 degrees as suggested,this then will allow full travel yes,or will it restrict it in the other direction,or have I made my cables to short?
My other thought isi could see no mention of how the pedals should be set up via the push rod attachments to ensure in correct position. I made mine in line with each other and slightly angled towards rear is this correct ?? Puzzled Tony UK .
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We have full travel in both directions with the bracket turned 180º.
Rudder travel will be limited by the steering gear contacting the lower bearing and steering gear lock nut contacting the firewall. If we knew then what we know now, we would have ignored the drawings specs for full deflection, and attach the rudder stops just before where the steering gear lock nuts contact the firewall.
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