Improved Hydraulic System Flow
The 580K hydraulic-system oil is supplied by 7-gallon-per-minute (26 L/min) and 26-gallon-per-minute (98 L/min) engine-driven tandem-gear pump sections.
The smaller pump supplies oil directly to the backhoe boom, stabilizer, dipper and bucket circuits.
The larger pump supplies oil to steering, loader and backhoe circuits.
With this split hydraulic circuit, the swing and other major backhoe functions can be operated simultaneously for improved cycle times and performance without having to feather the controls.