Evolution excel out of warranty with leaking flexible coupler

The flexible discharge tube shown above doesn't look like the failed connector on our model. After discussing with your support, I've ordered part number 75499 from Carroll parts. It looks like this should be an easy replacement. Is it something I can do? Are there instructions anywhere? Are any special tools required? I see a single bolt/screw above the coupler. Do I simply remove that?

Note: your facility for uploading pictures doesn't seem to be working.