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Regions
Kenterra Foot Bolts
Posted By: Jim Young Cp Faaop on October 17, 2016
Over the last few years I Have had several Kenterra foot bolts loosen from the proximal attachment. It was an easy fix to reloctite and torque, but I was having this issue frequently enough that I made a decision to preemptively Change the blue loc-tite to red and that resolved the issue. But the response from Freedom after reporting this problem was thae following: An initial evaluation has been conducted. A few points: * We do not recommend changing the torque to a higher value. The value has been checked and increasing will likely lead to fatigue failure of the bolt or female threaded components. * We have had Qty: 1 primary return from the bolt coming loose in our quality records. * The Loctite we are using was selected primarily for its oil tolerance capabilities which we have a need for with the hydraulic oil present during the manufacturing process. It also aids with serviceability. * Changing to a Red with less oil tolerance may be a higher risk than the Blue with more oil tolerance. A change would also need to be validated before we could implement it or formally recommend it. * There is very little rotational force on that specific bolt. Very interesting that his loosened. I suspect that most of us are fixing the problem without reporting it. How many of you out there have had a similar issue, and how many times? SGT. James O. Young Jr., USAF (ret.), B.Sc., LP, CP, FAAOP AMPUTEE PROSTHETIC CLINIC Macon Tifton Albany 888FAKELEG 888fakeleg.com |
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