Trust me.... such machines have warranted such language. Our usual 710 has been back on site for a couple days now, it came leaking oil from underneath naturally. I climbed in it yesterday because I didn't feel like waiting 45 minutes for the all star operator to change it over to the bucket. He went digging at 7am, I drove over with the 973 about 7:15 to see the progress and oil is puking out of the boom at the stick joint. I asked him whats goin on, he said a little leak, so he kept running it and I drove away shaking my head. Finally he came back about a half hour later saying the hydraulic pump is making funny noises. He took 2 pales of oil, filled it up and ran it for another 20 minutes or so. He then drove around puking oil out for another 2hrs.
The mechanic showed up around 10:30 or so, he diagnosed it as the soft line where the hard line for the bucket cylinder comes up inside the boom and then joins to another hard line in the stick, we ordered one and had it running by 1:00. I went put the hoe pack back on, hoe packed for an hour since he was so far behind, and then returned the machine to him with a long list of things that needed packing. He drove over to me about 45 minutes later "dude I blew another hose" I started lookin around the hoe, its comin out almost the same place as before.
I like the 710's, anytime I have had to run one for a few days I have never had a problem with them. Yeah they drip, yeah they smell funny, but I have never blown a hose. This character has had 4 different 710's in the 2 seasons he has worked for us and never gone more than 2 days without at least 2 or 3hrs downtime. Last year he had to park one because the fuel tank was leaking, so they sent out a welder to repair it. He climbed under the machine and showed me at least 10 large cracks in the frame that needed attention.