Trim crank bushing/bearing
The trim crank assembly obviously rotates in a bushing or bearing and I'm wondering what is entailed in replacing it. Mine makes a slight grinding noise and while shooting it with LPS3 through the zipper in the headliner smooths it out and quiets it down, I'm thinking it may be getting time to look into why it's making that sound/feel to begin with.
Any insight?
Thanks, as always.
Kurt
Re: Trim crank bushing/bearing
Quote:
Originally Posted by
stevesaircraft(Bri)
Brian,
I don't see any picture attached, maybe it got deleted during a web upgrade. Any chance your could repost it?
My IA is working on a friends PA22 and it sounds like he is running into this issue. He seems to think that a field approval or STC would be required to install bushings. Do you have a 337 for this repair?
Thanks
Dean
Re: Trim crank bushing/bearing
I had the hogged out holes and worn pin a number of years ago.
I was able to bolt a piece of .080 steel strap top and bottom of the tabs with spacers between them. Three 3/16 bolts if I recall. The two repair tabs were match drilled before installation including the new 3/8 (?) pin hole. I fabricated a new pin from a 3/8 bolt fit it all together and drilled the handle pin hole with the handle in place.
While I was at it I made a lexan cover so I can see the works.
There is another trim thread with a foto or two of the compleat assembly. Not sure I ever took a photo of the works as I was building it up.
Hardest part of the whole installation was cutting the headliner ;)
Really just a minor repair and I would say the same about the bushings if one went that route.
Rocket.
Re: Trim crank bushing/bearing
Quote:
Originally Posted by
deandayton
Brian,
I don't see any picture attached, maybe it got deleted during a web upgrade. Any chance your could repost it?
My IA is working on a friends PA22 and it sounds like he is running into this issue. He seems to think that a field approval or STC would be required to install bushings. Do you have a 337 for this repair?
Thanks
Dean
I think there are a few buried in Andy's restoration thread... If not, I will have to do a search for them...
I consider it a minor change.
Brian.