I have the same one you have This is the first video I have seen foe a miva va15 mini Right now i have a problem if where my hydraulic is not working it wont walk the boom and bucket moves very slow
Typically the number is the "tons" class of the machine. A "15" is a 1.5 Ton. In many cases the "weight" includes the operator weight. This convention is not strictly followed.
I would add that people may want to disconnect the two hoses for the swing bearing and then pump grease into the fittings until grease comes out of the disconnected hoses. I thought I was greasing mine thinking the hoses were already full but nope. I had to pump quite a lot of grease until it came out of the hoses.
Great points on changing zerk fittings out. That was the 2nd thing I did as the 1st was 'attempting to grease mine. OK that was after I made a small hole in the ground lol