Case 580B Backhoe Loader — Classic Workhorse Explained

[MikePhua]

   

Origins and Legacy
The Case 580B, part of Case’s landmark '580' series, traces its roots back to the early 1970s. Launched in 1971 as the "Construction King," this backhoe loader belonged to a family of rugged machines designed to cover both digging and loading tasks efficiently. By 1973, Case had introduced the refined 580B variant, a model that went on to become a staple in construction, farming, and landscaping fleets around the world .
Serial Number History
Understanding your 580B’s year of manufacture is as easy as cross-referencing its serial number, typically located beside the dash or under the door frame:

• 1971: 8,674,001 – 8,691,900
  
• 1972: 8,691,901 – 8,712,000
  
• 1973: 8,712,001 – 8,736,601
  
• 1974: 8,736,601 – 8,770,000
  
• 1975: 8,770,001 – 8,797,500
  
• 1976+: 8,797,501 onward
  

Core Specifications
Here’s a detailed breakdown of what defines the Case 580B’s performance:

• Operating Weight: Approximately 11,000 lb (5,000 kg)
  
• Engine: J.I. Case 3.1L (188 ci) 4-cylinder diesel, rated around 50 hp gross, 43 hp net, delivering a maximum torque near 132 lb-ft
  
• Hydraulics: Loader system provides 26 GPM (98 LPM) flow at 2,200 PSI (~151 bar), enabling robust digging and lifting performance
  
• Backhoe Performance: Dig force of about 9,400 lb (4,264 kg), standard dig depth reaching 14 ft (4 m), extendable to 18 ft (5 m), with load height near 11 ft and reach beyond 25 ft with extension
  
• Dimensions:
  • Transport length: ~22 ft
    
  • Width: ~6.4 ft
    
  • Height: ~7.65 ft
    
  • Wheelbase: ~6.5 ft
    
  • Ground clearance: ~1.15 ft
    

Engine & Transmission Setup
Multiple drivetrain options were offered to suit varied operator preferences:

• Mechanical Shuttle: Manual clutch engagement plus pressure plate for direct steering control
  
• Power Shuttle: Torque converter-assisted system that enables seamless direction changes without manual clutch use
  
• Steering hydraulic, with mechanical disc/band brakes; operators had choice between ROPS or enclosed cab configurations
  

Common Wear Points & Maintenance Tips

• Steering Cylinder Leaks: Frequent maintenance is needed—prefer full seal kit replacements over quick patch fixes
  
• Hydraulic Hose & Cylinder Reliability: Utilize quality replacement kits to prevent recurring leaks
  
• Transmission & Shuttle Wear: Inspect regularly for slipping or gear engagement issues; torque converters may need overhaul after heavy use
  
• Pins, Bushings, & Brake Components: High-wear areas, particularly in loader arms, benefit from periodic replacement to maintain stability and braking efficacy
  

Utility and Operator Stories
During its heyday, the 580B excelled in light roadwork, trenching, and material handling—most notably in rural projects where its simplicity and serviceability made it a trusted machine. Rural contractors fondly recall machines logging over 10,000 hours with basic upkeep and genuine parts. Its blend of loader and excavator functions made it an all-in-one favorite detailed in nostalgic recollections.
Defining Terms

• Construction King: Early Case branding for heavy-duty, integrated loader-backhoe models.
  
• Power Shuttle: Transmission system enabling forward/reverse shifts under load without clutch.
  
• Dig Reach / Depth: Extended arm positions allowing material manipulation well beyond chassis length.
  

Summary Snapshot

• Decade of production: 1971–1976 (580B)
  
• Engine: ~43 hp diesel
  
• Dig depth: up to 18 ft
  
• Weight: ~11,000 lb
  
• Available transmissions: Mechanical or Power Shuttle
  
• Notable: Durable, widely supported, iconic in restoration and vintage fleets