While the Kala uBass is a very well-made Ukulele, things can break. Particularly things that get a lot of use, like strings and tuning pegs. Replacing a broken string is not very complicated. But replacing a broken tuning peg is a little more involved. The uBass uses custom made Hipshot Tuners.
To guide you on your journey to full tuning peg functionality, Kala Brand Music Co. and kindly provided a video entitled “Assembling a Ubass2 Tuner” outlining the steps need to remove a broken tuning peg and replace it with a new fully functioning one.
Watch the video. And hope you never have to use its advice.