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Dropped my bass - knob loose

Discussion in 'Hardware, Setup & Repair [BG]' started by Kulio, Jan 15, 2014.

  1. Kulio


    Mar 18, 2011
    Didn't zip up my gig bag, lifted it up and dropped my Ken Smith 6 string on our wooden kitchen floor. Checked it out, all seemed fine, went to rehearsal, played it at home a few more days, and changed the strings tonight.

    Just wiping it down, I turned it over and the volume knob fell off! I've never had anything like that happen. I plugged the bass in, and with the knob in, the volume is working - but I have no idea how it attaches. It just comes off easily in my hand now. It could be unrelated to the fall, but I'm afraid that the volume knob itself might have taken the brunt of the fall, knocking something loose.

    The bass works fine, no problems, just a knob that comes off easily in my hands. I leave in less than a week for Memphis -- so I'm nervous. Does anyone know anything about how these knobs are attached?

    Thank you so much for any help or advice you can give me as far as making sure it doesn't fall off in the middle of some pretty important gigs next week. What would you do?
  2. hotrodjohn

    hotrodjohn Supporting Member

    Aug 7, 2009
    take some pictures for us
  3. spaz21387


    Feb 25, 2008
    Portland oregon
    Theres either a set screw or split shaft pots. If split shaft take a knife and pry the split back open. If its a set screw get an allen wrench or screwdriver whatever it takes and put it back on.
  4. pfox14


    Dec 22, 2013
    If it doesn't have a set screw I bet the knob is cracked and that's why it won't stay on the pot shaft. You need a new knob.
  5. Kulio


    Mar 18, 2011
    I have a picture of the knob, but I'm trying to figure out how to attach it? Can I upload and attach a picture from my computer?
  6. 96tbird

    96tbird PLEASE STAND BY Supporting Member

    Yes go to advanced reply and scroll down to manage attachments

    But just look at your pot shaft. Is it split and grooved or solid and smooth?

    If it's split, look into the knob and see if it's broken where the shaft goes in. If not you need to gently spread the two sided if the shaft apart.

    If the pot shaft is smooth, there will be a screw in the side if the knob that you tighten it on the shaft with.
  7. Kulio


    Mar 18, 2011
    I clicked on "Go Advanced" and there's still no option to post a picture (I'm looking for the paperclip) - when I scroll down to Posting Rules, it says you may not post attachments.

    2 things - the shaft is still connected to the knob - the entire shaft/knob comes off in my hand, sorry I wasn't clear about that. So the knob is still screwed into the post.

    Secondly - Ken Smith responded to my post on the KS forum after you guys did last night, and said to email him, so I'm hoping to hear something a little bit later - I sent him the picture. I so appreciate your response when I was frantic in the middle of the night!
  8. mech

    mech Supporting Member

    Jun 20, 2008
    Meridian, MS, USA
    The pot is broken and you need a new one.

  9. Lownote38


    Aug 8, 2013
    Nashville, TN
    This. You can save the knob, though, by using one of those broken bolt remover bits on a drill. You drill into the broken post inside the knob, and then back it out. That way you won't have to find a matching knob and just need to replace the pot.
  10. pfox14


    Dec 22, 2013
    Ahhh, I see. The bass must have landed right on that knob, breaking the shaft off. Have to replace the pot.