I was given one some years back..what a interesting beast..It had water leak at hose clamp..used it about 6 months ...then noticed small articles getting by washplate getting grease on them...wife was not happy.
The past owners said it had been fixed so many times they were over it.
I see few every now then...and like so many others don't waste my time with them.
long story short...Its now portable fire pit (s/steel tub that is) move to veg garden in winter, plants love that potash.
take out before we prepare soil and plant.
wondering if they were the same engineers....