A 2012 JCB backhoe, likely a 3CX or 3DX, would typically have a 4-cylinder diesel engine, with horsepower ranging from 76 to 90, depending on the specific model and configuration. Operating weights typically fall around 8,200 kg (18,000 lbs). The backhoe could dig to depths of around 4.77 to 5.97 meters (15.6 to 19.6 feet) and reach out to 5.83 to 6.72 meters (19.1 to 22 feet). The loader bucket would have a capacity of around 1.0 to 1.1 cubic meters (1.3 to 1.4 cubic yards). 

Here's a more detailed look at specifications you might find for a 2012 JCB backhoe:
Engine:
  • Type: 4-cylinder diesel, typically with direct injection. 
  • Horsepower: Around 76-90 horsepower (57-67 kW). 
  • Torque: Maximum torque around 310 Nm. 
  • Other: Features like a water-cooled system, spin-on oil and fuel filters, and a fuel/water separator are common. 
Backhoe:
  • Maximum Digging Depth: Approximately 4.77 to 5.97 meters (15.6 to 19.6 feet).
  • Maximum Reach (Horizontal): Around 5.83 to 6.72 meters (19.1 to 22 feet).
  • Bucket Capacity: Typically around 0.3 cubic meters (0.4 cubic yards) for the backhoe bucket.
  • Tear-out force: Can vary, but might be around 31.63 kN. 
Loader:
  • Bucket Capacity: 1.0 to 1.1 cubic meters (1.3 to 1.4 cubic yards).
  • Lift Capacity: Around 1800 kg (4000 lbs). 
Other Specifications:
  • Operating Weight: Around 8,200 kg (18,000 lbs). 
  • Transport Length: Approximately 5.62 meters (18.4 feet). 
  • Transport Width: Around 2.36 meters (7.7 feet). 
  • Transport Height: About 3.61 meters (11.8 feet). 
  • Travel Speed: Can reach up to 36 km/h (22 mph). 
  • Tires: Front tires might be 14-17.5 (2wd) or 9x16-16PR, and rear tires could be 19.5L-24 R4 10 PR or 16.9x28-12PR, depending on the configuration.