Case 580K Backhoe Specifications

Steering-System Hydraulic Supply

The 580K steering-system oil is supplied by the 26-gallon-per-minute (98 L/min) section of the engine-driven, tandem, gear-type pump. This section also supplies oil to the loader and backhoe circuits.

The 580SE steering-system oil is supplied by the 7-gallon-per-minute (26 L/min) section of an engine-driven, tandem, gear-type pump. This section also supplies oil to the backhoe circuit.

The 580K steering system is load-sensing, supply-on-demand, requiring a maximum of 3.5 gallons per minute (13 L/min) when turning the wheels from stop to stop. Oil not being used by the steering system is made available to the loader or backhoe circuits. Benefits of this system include:

□ More steering control at low engine rpm because more gallons of oil are available to the steering system at low engine idle.

□ When the steering system is not in use, more gallons of oil are available for the loader or backhoe circuits for improved performance.

Increased Wheelbase

The wheelbase has been increased 2 inches (51 mm) from 82 inches (2.08 m) to 84 inches (2.13 m). This gives improved stability and weight distribution.

The longer wheelbase increases the clearance turning circle without brakes from 24 feet, 1 inch (7.34 m) to 25 feet, 1 inch (7.65 m).

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