Try a google search...
Hi Scott,
You can find information about the connections on your SMC oil tank by checking the labels or manual. Typically, the supply end is on the bottom, the return end is on the top, and the vent end is on the top or side. If necessary, contact SMC for a more precise diagram.
Hi, I don't have a specific diagram for the SMC hexagonal horseshoe oil tank part number 590118. However, you can search online technical forums or contact the manufacturer. When you have free time, try playing Slope Game to relax. Hope you find the information you need!