Digging up Tennessee one 8" trenching bucket at a time

Hello all.  I bought a Ying Fang YFE15 mini excavator with a cab and pilot controls about a month ago.  Mine came with a pallet full of attachments and so far its done a good job digging out 2 very large stumps (one was over a ton) in my yard.  I have just a couple of issues with this machine but overall its been a fun toy and I have a lot of work on the schedule for it. 

Parts are a main concern for me.  I have an very thick and fairly thourough owner's manual for it but looking on the internet I can't find anything about Ying Fang excavators.  It appears to me that they are marketed in the US as In Front machines.  Is this correct?

My machine has the 13.5 horsepower Briggs engine and dual hydraulic pump.  I am going to thouroughly enjoy the cab this fall during wood cutting season but this summer it has been a curse.  I removed the door and added 2 cooling fans to the engine compartment but they over tax the charging system so I can only run one at a time but that's ok.

When I figure out what machine I have and what sub forum to post under I have a couple of questions concerning hydraulic issues I'm having.