Re: Ring around brake drum
Fairly common problem - you can try to remove the inner wheel half and drum and support it well on the bench and use a punch to stake the ring to tighten it to the drum
Re: Ring around brake drum
I tig welded the inside of the ring, and turned it on a lathe .006 under size. I then heated it to 250f in the oven and slipped it over the drum. Once it cooled it was very tight. It worked perfect. I wouldn't use a punch to stake it as it needs to be in contact all the way around in order to act properly as a heat sink.
Re: PA-22 Drum Brake Ring Loose
Merged your thread with another that might be helpful.
Re: PA-22 Drum Brake Ring Loose
Ah, I recall seeing peening marks all around a groove in the ring. TIG welding and machining are not an option, so I will try re-peening.
Rich
Re: PA-22 Drum Brake Ring Loose
That is a short term fix, as a very small percentage of the ring willl have good contact with the drum. It will loosen up in short order.
Re: PA-22 Drum Brake Ring Loose
This issue has come up a few times before and I have merged those threads. Some good information in the prior posts.
Re: Loose brake hub ring ROGER THAT
Quote:
Originally Posted by
Glen Geller
Hi John,
The ring is part of the brake drum assembly, it's there to keep the open end of the drawn brake drum from spreading or splitting when the shoes expand for braking, and act as a heat sink.
It's OK if it's a little loose or rattles when you taxi.
If you try to slide it off the drum (towards centerline of aircraft, it should be impossible to do that.
That ring is aluminum, it would not last very long as a brake disk!
Happy landings,
GG
Thanks for merging prior posts. Awesome reply, very helpful. DOH ?! That ring would fail as a disk, not a very good guess - heat sink and hoop restraint makes perfect sense.