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Naim Nac 72 selector knob how to tighten

Discussion in 'audio' started by eddie1, Nov 27, 2021.

  1. eddie1

    eddie1 pfm Member

    On my Naim Nac 72 the source selector knob keeps working loose although I take it apart and tighten the screw inside it.
    Is there something else I need to do ?
    Is there a way to fix this so it doesn’t keep working lose ?

    Thanks in advance

  2. Mynamemynaim

    Mynamemynaim 38yrs a Naim owner

    Take it apart?

    You tighten the screw while it is on the shaft of the selector switch...

    If it's still coming loose...then the knob has probably cracked inside

    You need to check this hasn't happened...and if it has..and it's not too bad..then you can reinforce the knob by filling it with hot glue or epoxy resin
  3. eddie1

    eddie1 pfm Member

    Ok thanks I had been taking the knob apart and tightening the screw but hadn’t thought too look inside
    I will take a look and see what’s going on.
  4. MJS

    MJS Technical Tinkerer

    Also, be aware that the rubber surrounds can stretch and lose grip on the knob. A ring of tape around the wider part of the knob will increase its diameter enough to restore grip.
    Mynamemynaim likes this.
  5. Mynamemynaim

    Mynamemynaim 38yrs a Naim owner

    If you're knob is damaged beyond savings , then maybe @booja30 is still making 3d printed ones??
  6. eddie1

    eddie1 pfm Member

    Good advice thank you
  7. Craig B

    Craig B Re:trophile

    Yes, just take care to be very specific when placing your order.

    Mynamemynaim and Darren L like this.

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