OK so if you want 240V, with the machine shut down, you want to open the gauge panel and look to the back wall. In the middle you will see a large switch with S8 printed above it in small white letters. Find this switch... and set it to 240V (NEVER with the machine on!) You have just told the machine you want 240V, so it will be energizing the appropriate lugs (L1 and L3, in this case).
So with that set, you will want to shut the operator control panel, and look to the AM/VM connection switch. You will want to set it to the 3 o clock position (which if you look at the writing on it, its going to tell you the same info... 1ph, with which legs are being energized).
So with both of those things now set, turn the machine back on, and let it get up to operating temperature. Once there, push that switch up to 'close' the circuit. The light should come on, and you should have power at the lugs.