Trashy Arbor
Posted: Thu Apr 15, 2021 10:50 pm
A while back this sad looking arbor appeared in a thread.(the one on the bottom)
viewtopic.php?p=280624#p280624
So I received it last week.
It somehow acquired the recessed washers and a set screw.
The keyed washer was cupped by a PO gorilla. Squeezing with a vice flattened it. The tab is skewed, but usable.
After wire brushing and some JPW.
The setscrew(on the left) was a cupped type. I will replace it with(on the right) an oval set screw. The copper pipe (pieces) removed.
The nut still would not go all the way on even with excessive filing of the threads where I thought it was binding. I did not think to try a known good nut when I was filing. I 'eventually' did so and discovered known good nuts worked perfectly.(live and learn!)
So chasing the threads with a 5/8-18 tap resulted in the following debris. Almost ALL rust from the root of the nut threads(the cause of the binding).
The bore with the oval set screw is now clear of that copper pipe or whatever.
Finally ready to resume active duty.
Food for thought when considering trashing some derelict part.
viewtopic.php?p=280624#p280624
So I received it last week.
It somehow acquired the recessed washers and a set screw.
- B4.jpg (239.42 KiB) Viewed 1371 times
After wire brushing and some JPW.
- AFTER.jpg (482.65 KiB) Viewed 1371 times
The nut still would not go all the way on even with excessive filing of the threads where I thought it was binding. I did not think to try a known good nut when I was filing. I 'eventually' did so and discovered known good nuts worked perfectly.(live and learn!)
So chasing the threads with a 5/8-18 tap resulted in the following debris. Almost ALL rust from the root of the nut threads(the cause of the binding).
- SWARF.jpg (402.24 KiB) Viewed 1371 times
- BORE.jpg (215.48 KiB) Viewed 1371 times
- READY FOR ACTION.jpg (375.57 KiB) Viewed 1371 times
Food for thought when considering trashing some derelict part.
