Will this role interfere with my work as a translator?

At times, yes. Expect to spend around 100 hours in conference-related activities, and plan on dedicating most of your working time in the week or two leading up to the event to communications with attendees. 

If this sounds daunting, remember that you will not be alone. By working with the events planner to carry out your principle activities well in advance of the event, you can help to minimize the immediate impact of your conference involvement on your freelance work. What is more, you may find that the exposure gained by organizing a conference enhances your freelance business after the event.