Whirlpool PTAC Fan Motor

I have several Whirlpool ACE184XD1 PTACs installed in vacation rental units. One of them has a fan motor which has started to intermittently "squeal". I oiled the bushing and also had a tech come out and look - he did the same thing I did. FInally decided to replace the motor but can't remember how it installs in the unit. I have someone in the room right now so can't afford to have the unit out for long so I'm trying to figure out how to do the job before the new motor arrives tomorrow. I seem to recal there were a couple of clips - one fornt one rear but couldn't see how to release them. Anyone have an exploded view of the installation or any idea how to do this?