Reply To: Pin doesn't hold firmly-slips loose after tuning

[wil-weten]

Is it a tapered pin?
In that case, have a look at:
https://teifiharps.com/project/fix-stuck-slipping-harp-tuning-pin/

https://reesharps.com/slipping-lever-harp-tuning-pins/

or

http://www.fisherharps.com/Tuning_Pins_Troubleshooting.pdf