Sven den Boer wrote:
>
>All,
>
>Aircraft has been reconfigured by Bob Berube to fingerbrakes in feb. this year.
>Now the brakehandles appear to move very `free` around, and no pressure is
>noticed.
>Filling the system with oil from the brakes is almost impossible, even with a
lot of pressure.
>Removing master brake cylinders seems to be a hell of a job !
>Any tips, troubleshootings or similarities noticed, please let me know.
>
>Sven den Boer
>A168
>PH-SBR
>
>
>
>
Sven,
I had mega problems filling and bleeding the system. First, disassemble
the master cylinder and check the the two nylon washers are not binding
in the bore. Mine were, so I sanded the edges, until they moved,
freely. I tried various methods for pushing or pulling the fluid
through the system, to no avail. I'm using ATF. What finally worked
was to fill the reservoir and then use 30# air pressure to push it
through. I stopped the pressure when the reservoir was almost empty, to
refill. It took about three fills to top off the system. Once the
system was dropping ATF out of each caliper, I closed them off and then
had my son open one, as I applied more pressure to the reservoir. When
the bubbles stopped, I did the other side. It was a pain, but it worked
and A055 now has a set of working breaks...
--
Jeff - A055
Almost done with airframe...
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