Prone to emission issues, as was most other tier 4a machines.
They were decent machines, with ZF axles and transmissions, FPT engine.
Have done a lot of brake seals and axle pivot seals, but not much else for differential work.
Has some design flaws, like the batteries being under the electric powered hood. (you could boost through the fuse panel to get the hood open though, but still a bad design flaw)
Has some bad ideas of hose and tube combinations for hydraulic lines.
IMO they had good powertrain. Chassis could use some refining, so could the hydraulic line routing.
