[DavidG]

If by steering lock barrel you mean the slotted cylindrical piece attached to the steering shaft with two set screws then yes, it can be removed separately, but only if the on/off lever is in the off position. Otherwise the vertical lock shaft is in the down position and engaged in the rectangular opening in the "lock barrel". If that's the case then you either have to free up the keyed lock cylinder so you can turn it to lift the vertical lock shaft or remove the keyed lock cylinder to achieve that result.