schematic

Hey everyone - I just bought an IH 574. The markings and gauges are all worn off and I'm not sure what all the levers and pedals do. I am good on the PTO engage/disengage, 3 point raising/lowering, choke and all of the stuff I need to know for normal use. But I know there's a differential lock...

I need to get into the right brake of my 4505. Does anyone have advice? I have a diagram of the left side but cant find a blow-up of the right side.