Dear Rob, Sideway measurement is a good idea. Please send me the side deviation of your cable and the point where you measure it when you take out your fuel tank. A picture is also appreciated.
With many thanks and best regards Gyozo > 2020. szept. 21. dátummal, 23:36 időpontban Rob Thompson > <[email protected]> írta: > > > It is a bit hard to quantify. I have always done it by feel. > We will have the tank out in a few weeks...maybe there is some way of > measuring the tightness. > Basically you wind up the turnbuckle until the spring starts to stretch. With > a bit of finger only pressure I am guessing the springs would move sideways > about a centimetre if the tightness is correct. > The wheel should be firm with no slop > Rob > > Rob Thompson > 0429 493 828 > > > >> On Mon, Sep 21, 2020 at 8:04 PM Győző Horváth <[email protected]> >> wrote: >> Hi Rob, >> >> Is it possible to quantify somehow the tightness of the turnbuckles? >> Just making the experiments is problematic because of the need of taking out >> the fuel tank.☺️ It would be good some objective measurement. >> >> BR >> Gyozo >> >> >> Az iPhone-omról küldve >> >>> 2020. szept. 21. dátummal, 10:09 időpontban Rob Thompson >>> <[email protected]> írta: >>> >>> >>> If there is not much movement in the bearings, my suspicion is that the >>> tail wheel spring turnbuckles are not tight enough. >>> If the tailwheel spring turnbuckles are too tight you get VERY immediate >>> response on the rudders on the ground. >>> If they are too loose you get a "waffling" "inconclusive" response to >>> rudder input. This can lead to shimmy. >>> >>> regards >>> Rob >>> >>> Rob Thompson >>> 0429 493 828 >>> >>> >>>> On Mon, Sep 21, 2020 at 6:01 PM Győző Horváth <[email protected]> >>>> wrote: >>>> Hi Rob, >>>> >>>> Thanks for your advice. >>>> We checked the shaft. >>>> There is a tiny movement of the shaft. >>>> Is there any acceptable limit (if yes, how it should be measured) or no >>>> movement is required? >>>> >>>> BR >>>> Gyozo >>>> >>>>> 2020. szept. 20. dátummal, 8:45 időpontban Rob Thompson >>>>> <[email protected]> írta: >>>>> >>>>> >>>>> If your cables are properly adjusted, it is likely that the bearings on >>>>> the tailwheel shaft are a bit worn or the nut on the top of the shaft is >>>>> not tight enough. >>>>> Lift up the tail and check to see if there is any movement up and down or >>>>> side to side. >>>>> A small amount of forward pressure on the stick stops the shimmy. >>>>> >>>>> >>>>> regards >>>>> Rob >>>>> >>>>> Rob Thompson >>>>> 0429 493 828 >>>>> >>>>> >>>>> >>>>>> On Sun, Sep 20, 2020 at 3:42 PM Győző Horváth <[email protected]> >>>>>> wrote: >>>>>> Hi, >>>>>> >>>>>> I often experience shimmy of the rear gear when I operate on concrete. >>>>>> It is linked to a certain speed during acceleration for take off and >>>>>> after landing as well. >>>>>> Springs and cables seem to be OK. Tyre is not worn. Pressure is OK. It >>>>>> happens on international airports with good quality asphalt as well. >>>>>> Does anybody of you have such experience? Why is it not allways, just >>>>>> often? >>>>>> How can I avoid it? How dangeruos it is to the glassfiber material of >>>>>> the tail. >>>>>> With many thanks and best regards >>>>>> Gyozo >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> --------------------------------------------------------------------- >>>>>> You are subscribed to the Dimona Owners Group mailing list. >>>>>> This list is archived in public. http://waikeriegliding.com/dog/ >>>>>> To unsubscribe, send email to: [email protected] >>>>>>
