Well, the schematic is always helpful, unfortunately there is a lot on the posted one that I can't read. I have couple of observations and questions.
WARNING - I am not an electrician.
1 - Why are you having to wire it? Did it not come with a plug? If not, why not? How was it running before you bought it (real question - WAS it running?)
2 - If you are hooking up a pigtail and plug, it looks like it hooks to a main on/off switch, and NOT in the motor lead box and not shown in your pics. It appears it would hook up where the schematic shows "TO MAINS". I think the big oval at lower right is supposed to represent a jacketed power cable from a plug. A side comment is the leads at that point appear to be labeled "L1" and "N" from what I can make out - that is really only correct for low voltage (120VAC) since one wire would be live and the other neutral. Both power wires are live for 240 VAC (more correct to label them L1 and L2). The schematic says use 3 wires (L1, L2 and ground) and for the 230/240VAC set up they should be at least 16 gage.
3 - It looks like to me, the temp switch should have one red and one orange wire going to it. It looks like when the switch trips, it turns on three small fans and a light. It does not look like it will turn off the motor and no high-power (motor current) wires connect to it.
4 - None of the wires in the motor lead box match the schematic color-wise. Not sure why. Was the unit re-wired or something? Not that likely but who knows? Can't read the tags on the wires in most cases in your pics so not sure what they say.
5 - I 'think" there should be a blue wire from the main on/off switch to the motor lead box, and a brown wire from the pressure switch that connect on the big ceramic terminal block on top of the motor. Again - very had to make out the diagram.
6 - The schematic looks like it shows two jumpers (if that is what they are on the diagram) but I only see one jumper (copper strap thingy) in the lead box.
7 - It looks like the one jumper in the lead box has been hot. That could be normal, could be because one connection is crappy where the hole is elongated, or could be because somebody mis-wired it before.
