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#1
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What was the final solution for leaking brake swivel fitting? I now have one too. Who does overhaul? Or did you disassemble replace o rings and it is holding?
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#2
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Quote:
1. Rebuild it yourself with new o-rings 2. Buy a replacement swivel fitting from Parker for like $10 (non-aviation of course, but the exact same part pretty much). |
#3
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Is there a part/model number for the fitting from Parker? I've been looking and don't see anything that has the mobility of the original part.
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#4
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If you can remove it and take it into your local Parker store they can match it up or you could take a picture of it and send an email and let them take a shot. Hydraulics are hydraulics in a swivel fitting certainly is nothing new Under the Sun.
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#5
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The cessna swivel is not readily replaced by a standard hydraulic swivel. On my attempt found most hydraulic swivels have motion in only one axis: axially, right angle etc. The OEM swivel can spin axially and flex in all manner of directions. So a non OEM swivel likely will put more stress on the hose. Also, non OEM swivel uses JIC threads and not AN threading. AN threading is what is on pass-through in landing gear. Similar but not exact. Could use some adapter/NPT threads, etc; gets clunky fast in a tight space with things rotating around.
I am going with rebuild of OEM. Took the roll pins out but the swivel didn't just fall apart. There is a circular clip on mine holding a backup up plate behind the nipple. No easy way to access for removal. Also anticipate difficult to press back in place without constructing a tool. I see a witness hole about 1/16th inch in size that might give opportunity to get the circular clip out. However as I put increasing stress on things became worried about damaging a component I likely will have to reuse. If not source-able, would then be locked into purchasing a new swivel if desiring to stay OEM. So, I've sent out for overhaul. RobAir in Washington State will rebuild and test for $500. Discovered fair amount of corrosion at internal o-ring mating areas which was resolved. With that, simply replacing o-rings myself if I had successfully taken it apart probably would not have worked and leaked still. Just an update. |
#6
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Thanks for the follow-up.
$500 for OH doesn't sound too terrible. IF anyone has successfully repaired one of these on their own, please let us know. Pictures would be golden. |
#7
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I got an email from McFarlane Aviation and they are close to releasing a direct replacement for the swivels.
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