Jp,
I don't know the exact specs but on the 413s styles I set them so there was some deflection on the longest piece of belt between the pulleys when I pressed on it with my finger.
If the belt is clean, no cracks, and not visibly worn I'd not worry about it. I've worked on three with that set up and never have replaced a timing belt.
I've never had a 362 to mess with so I'm hoping it's similar to the other machines I've had.
Joe