Cleaning the condensor for the fridge.

 

http://www.wenxuecity.com/blog/201609/1666/1303238.html

Thanks to the author who provided so much information.  Most of it probably will take a long time for me to absorb.

have a fairly new fridge.  The condensor is still wrapped in cardboard (pic). 

1. Should I take off the cardboard?

2. The condensor is in the bottom and at the back of the fridge.  Besides using a 气泵, what is a good way to clean the condensor? Vacumm cleaner with an attachment?