Run Stanley Hoe-Pac Off Extendahoe Hydraulics

[MikePhua]

Using a Stanley Hoe-Pac (a hydraulic plate compactor) with a Case 580K backhoe’s Extend-a-hoe auxiliary hydraulics is a practical and often simple retrofit—especially useful for enhancing versatility on job sites. Here's a clear breakdown of how it works, what to watch for, and tips to make it long-lasting.
Method for Integration

• The simplest approach involves cutting the two Extend-a-hoe hydraulic hoses, capping the machine-side ends, and adding quick-disconnect couplers on both hoses. You then install matching couplers on the Hoe-Pac hoses. This setup allows you to easily swap between the Extend-a-hoe and the compactor without re-plumbing.
  
• For functionality, the Extend-a-hoe hydraulic lock pin must be activated before disconnecting, ensuring system safety and preventing accidental movement.
  

Considerations and Enhancements

• The factory configuration on the Extend-a-hoe uses T-off welding or T-fittings—not disconnects—so hoses remain fixed, reducing the chance of wear or snagging.
  
• If you choose the quick-disconnect method, secure the hanging hoses and couplers with brackets or clamps. This minimizes vibration damage and prevents hoses from catching on obstacles.
  
• Be aware: this setup does not include a selector valve to switch between functions. You must physically disconnect one implement and connect the other.
  

Practical Example
One user described cutting and capping hoses, adding matching couplers, and then simply locking the Extend-a-hoe before disconnecting. He said: "Uncouple the couplers and plug the Hoe-Pac in and vibbbbbbbbbbbrrrrrrrrrrrrrrate to your hearts content!"—a vivid way to describe a smooth, functional setup.
Component Notes
For deeper understanding or parts sourcing, here are details about a key component— the Extend-a-hoe dipper cylinder:

• Double-acting hydraulic cylinder designed for the outer boom extension.
  
• Rod diameter: 44.4 mm (1.75 in); stroke length: 1068 mm (42.05 in); weight: about 104 lbs (47 kg).
  

Even though this isn’t directly part of the hookup, knowing these specs can help when planning hose routing, weight support, and hydraulic flow compatibility.
Terminology

• Extend-a-hoe: A system that allows the backhoe boom to extend by several feet, increasing reach.
  
• One-way auxiliary system: Hydraulics supplying fluid in only one direction—used for powering attachments like compactors.
  
• Quick-disconnect couplers: Hydraulic fittings that allow for fast attachment changes without tools.
  
• Lock pin: A mechanical device to secure the Extend-a-hoe mode before activating hydraulics or disconnecting hoses.
  

Recommendation Checklist

• Install quality quick-disconnect couplers rated for your machine’s hydraulic pressure.
  
• Use clamps or brackets to anchor the hoses—minimize movement and stress.
  
• Always lock the Extend-a-hoe before switching attachments.
  
• Test for leaks after both attachment installation and before full operation.
  
• Consider installing hose guards or protective wraps to reduce wear in rough environments.
  

Equipment Context
Case’s 580K backhoe loader line—including Extend-a-hoe models—has long been popular in construction and agriculture for its versatility and reach. The Extend-a-hoe feature enhances digging range significantly, and pairing it with flexible attachments like the Hoe-Pac allows operators to do compaction work without switching machines—saving time and increasing efficiency.
Conclusion
Adapting a Stanley Hoe-Pac to run off a Case 580K’s Extend-a-hoe hydraulics is a smart, DIY-friendly modification. By cutting and capping hoses, adding quick-disconnects, and securing everything properly, you create a quick-swap system that enhances functionality. Just remember safety first—use the lock pin, secure hoses, and always check for leaks before full-scale use.