OK, fair enough. I did notice a hole which I did stick a screw driver inside and moved and twisted, but to no avail. I noticed when I was moving the driver around, the horn would sound, so it is some kind of lever.
I'll try in the morning, when I get back to the shop, and gice it a good reef to see if I can release the bloody thing!
Can anybody help with the t-bar knob?
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