Flashforge Adventurer 3 Pro Missing Build Plate?

[jrh_james]

Hi I recently bought a 2nd hand Adventurer 3 Pro and it seems to work fine, I was able to print a test object, but I think it is missing a part from the heated bed. Is there supposed to be a removable part that the object is printed on? If so can someone point me in the direction of what I need. Thanks James.