White Knight AW77 - Removing the back?

Sorry I'm not totally sure how this site works - I just added an additional question to an existing (old) thread, but as that get's classed as an "answer". I'm not sure if my question will actually appear to any experts that may be able to help.

So if you have any knowledge of this dryer I'd be grateful for any help on my question her : http://howtomendit.com/answers.php?id=434968

Thanks,

Tony