What model hyster? I have a H80 and H360, that bottom right doesnt show up in my manuals.
Engine is round on the bottom with a square on top.
Transmission is round with a gear around it.
arrow on the left side means level, thermometer on rt side means temp, arrows on both sides means pressure. exclamation point is an error/fault.
see if you can find a manual for it. call your local dealer and see if they can give you an electronic copy. Each of mine has about 2000 pages of manuals with it.