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PILOTDDS(at)aol.com
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 Posted: Sun Aug 26, 2007 12:23 pm Post subject: sept 2006 service letter axle-wheel bearing |
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When doing routine maintenance on my nose wheel, due to a felt vibration, I inspected the axle and wheel bearing. I discovered the bearing was no longer preloading and the axle sleeve was spinning and damaging the forks. There was approximately a fifteen thousandths groove worn in the fork on one side only and the bearing was not preloading. When I originally made the installation, which was prior to Van's letter, I noted that I had to shorten the axle shaft on a mill in order to get the spacers to preload the wheel bearing. The bearing functioned well at the time and the wheel and tire spun with considerable resistance. In effect, I complied with Van's recommendation in the September 2006 letter. I am concerned that there may be other individuals with similar problems and I would recommend you check the front axles periodically. I know I am rehashing a subject that there was considerable comment on, but in light of the fact that I did comply with Van's recommendations I feel this may be somewhat of a new issue. I recall from earlier discussions some of you had used a set screw to prevent this from happening, if anyone has any information or reports of success, after some time in service, I would appreciate comment. It should also be noted, that I had the earlier stainless steel spacers. Great airplane. I hope everyone who is flying is having half as much fun as I am.
Sincerely,
Jim Rore
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Get a sneak peek of the all-new AOL at http://discover.aol.com/memed/aolcom30tour [quote][b]
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Tim Olson
Joined: 25 Jan 2007
Posts: 2879
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| Posted: Sun Aug 26, 2007 1:58 pm Post subject: sept 2006 service letter axle-wheel bearing |
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If I caught one of your closing comments, you were using the original
stainless one? If so, I should note that despite anything Van's
says, that's a big no-no. Here's how mine turned out:
http://www.myrv10.com/N104CD/maintenance/20060809/index.html
I don't think I've yet started using the new ones. (Can't remember, I
might be though) But, I know I did secure them in place so that it
wouldn't cause any more wear. It's a nasty problem, and I would
strongly state that NOBODY should continue flying with the original
stainless parts, if everything was done per-plans. People NEED to
do at least something to prevent major issues, be it replacing
with the new parts, or securing the old so they can't rotate.
Some day, this one is going to bite a person big, when their
fork goes bad on them.
Tim Olson - RV-10 N104CD - Flying
do not archive
PILOTDDS(at)aol.com wrote:
| Quote: | When doing routine maintenance on my nose wheel, due to a felt
vibration, I inspected the axle and wheel bearing. I discovered the
bearing was no longer preloading and the axle sleeve was spinning and
damaging the forks. There was approximately a fifteen thousandths groove
worn in the fork on one side only and the bearing was not preloading.
When I originally made the installation, which was prior to Van's
letter, I noted that I had to shorten the axle shaft on a mill in order
to get the spacers to preload the wheel bearing. The bearing functioned
well at the time and the wheel and tire spun with considerable
resistance. In effect, I complied with Van's recommendation in the
September 2006 letter. I am concerned that there may be other
individuals with similar problems and I would recommend you check the
front axles periodically. I know I am rehashing a subject that there was
considerable comment on, but in light of the fact that I did comply with
Van's recommendations I feel this may be somewhat of a new issue. I
recall from earlier discussions some of you had used a set screw to
prevent this from happening, if anyone has any information or reports of
success, after some time in service, I would appreciate comment. It
should also be noted, that I had the earlier stainless steel spacers.
Great airplane. I hope everyone who is flying is having half as much fun
as I am.
Sincerely,
Jim Rore
**************************************
http://discover.aol.com/memed/aolcom30tour
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http://www.matronics.com/Navigator?RV10-List |
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