our is 8400kg - 18500 pound, and that is with all my toys half fuel tanks
Empty... it is around 7260kg, and it can take safely load of 3200kg more.
Total is 10460kg =23040Pounds that is what the CE paper is saying.
that is class A offshore
, (if you just stay along the cost you can load up more.)
So you are a bit overloaded yes.
better get a good crane to get your real readings..