Hello, I have a question for experts. A cat 390F 2L series excavator slows down after working for 3 hours and cannot tear the soil. Why?
Get in the monitor and see A) codes, if any 2) go into parameters and monitor fuel pressure when it acts up My 324D machines would completely stop all hydraulics while lifting, when the fuel filters were restricted. If you stopped lifting, and waited for the fuel pressure to get back to normal, you could finish lifting. Out of all the things the computer controls, maintaining engine rpm is the priority, even if it means fully destroking the hydraulic pumps. You'd never hear the engine stumble when this occurred.