My two cents worth. Hydraulic actuation may sound an improvement but it adds another fluid that can leak. It is anhydrous with water over time adding another fluid to change routinely and seals to consider. All adding (unnecessary?) complexity.
Perhaps for a 1,000 kg glider hydraulics may be necessary for a panic stop and they probably have hydraulic systems as original installations. Boudin cable systems seldom need adjustment: rework perhaps every 30 years. We have a few gliders trailers that had hydraulic brakes but have now reworked for some to have simpler open cable braking systems fitted, noting that trailers sit motionless on the airfield 330 days p.a. We found that when the trailer was required the brake fluid has disappeared or the brakes must be bled. All additional maintenance to a trailer that is seldom maintained. Alan Wilson Canberra Sent from my iPad > On 15 Jul 2015, at 19:10, Ian Mc Phee <mrsoar...@gmail.com> wrote: > > I got below from Susanne Dupont of TOST re wheels > > > > Brake cable laid in the most possible direct way but without tight bends > > Use a Bowden cable with a set screw > > Adjust brake lever at regular intervals > > Roughen brake linings with emery paper > > Check minimum lining thickness > > > > Another option is the hydraulic actuation of the drum brake wheel – it is not > such a big modification as the conversion to a disk brake wheel. > > > > I also add I find the original outer bike crap has too much drag. I always > replace with Teflon lined outer which is available these days. I go to great > effort to avoid the sharp bends by either using a suitable channel of a > plywood former for the curve. > > > > Wheel brake outers can be not thought about during 30 yearly or 3000hry I > find. > > > > Ian McPhee > > 0428847642 > > Box 657 Byron Bay NSW 2481 > > <Hydraul actuation Standard Kobold 2015.pdf> > _______________________________________________ > Aus-soaring mailing list > Aus-soaring@lists.internode.on.net > To check or change subscription details, visit: > http://lists.internode.on.net/mailman/listinfo/aus-soaring
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