Newbie Treadmill Question!! Help !

Options
I purchased a tempo 632T treadmill from Canadian tire last June. It hasn't been used much since then I'd say a total of 30 times or so. Just recently I have really put in effort into going on it every day for about 90 minutes at 3.0 -5.0 speed

Yesterday I noticed that the belt was angled towards the right side , so I .read the manual and adjusted it. While doing that I Also noticed that it needed more lubricant so I lubricated it using the silicon that was provided with the mill.

It took me a while to get the alignment right but I eventually got it.

I hopped on and away I went. After about 60 minutes the belt jolted almost stopped and then kept going.... then 10 or so minutes after that i smelt burning, so I stopped it immediately and unplugged it.


I turned it on today and ran it without getting on and it seemed okay.

My question is could the belt have been to tight? How do I know if the belt is to tight?
And also any other insight to what it could have been or what my next steps should be into making sure the machine is safe to use again.

Thanks in advance for any help !!