Hanix H27 info wanted

I recently purchased a Hanix H27 compact excavator to do some clean up and trenching on my small farm. I know it is a grey market machine and it’s kind of beat-up but for the most part it seems to work good other that the backfill blade won't hold down pressure.

I am having a hard time finding any information about it, like where to buy parts, and manuals, and such. I am pretty sure the problem with the blade is in the control valve but, I don’t know where to look for rebuild kits. Price was the main reason I got this machine, but I am worried I may have bought a big headache.

Any help would greatly be appreciated, not only with tracking down parts but also any other pointers for owning a mini-ex.

Thanks