I recently bought this machine knowing it had a couple of "quirks", not surprising considering it was made in 1986 but its only had bodyshop use nowt heavy plus i couldnt resist for £100....Live torch and mole grips used as selector button are my problem plus it was made pre internet and oxfords rebranding Does anyone have a manual or wiring diagram to help me trace /solve these , as ive replaced 1 relay to no avail + the part number for selector switch is impossible to read, many thanks in anticipation