I’ve been having a lot of trouble with a CAT 320C (S / N BDE00683) excavator with 16,000 hours on the clock, which my boss just bought.
I have an old Cat 320, along with several other Cat excavators. It is a 9KK model circa 2000. The excavator is a bit slower than the others.
I have a CAT 320 that suffers from power loss under load, as soon as it tries to dig it sounds like its suffocation and if you keep pushing it will eventually stall.