B7200 Headlamp Switch Removal

[Like Our Kubota]

Hi,
I'm new to this form and hopeful I'm posting correctly and in the right place. I have the fuel tank out and firewall off as I had to repair a frayed wire at the main switch as well as replace the hazard switch. I noticed the headlamp switch is loose. I would like to tighten the retaining nut with a socket but do not know how to release/remove the headlamp switch plastic knob. I can see three philips screws on the back face of the headlamp switch housing but felt I should pause and seek advise before going further as I don't want to damage anything out of ignorance. Do any of you know how to release/remove the black plastic knob? It rotates rather than pulls out to turn on either high or low as I imagine may be norm for these tractors.

Any insight would be greatly appreciated.

 

[Like Our Kubota]

Embarrassing. I just looked on the other side of the knob and there's a set screw in plain view. I was definitely over thinking it :-0
That's my bad for not looking and instead reading AI that erroneously told me there is a release button on the back of the switch. My apology for posting a big nothing...