Description:
Serial Number Location:
For Case 680H models (produced from 1991 to 1996), the serial number plate is typically located on the left-hand frame near the loader tower or stamped near the rear of the transmission housing. Always verify your serial number before ordering to ensure proper part compatibility, especially with drivetrain and hydraulic components.
Case 680H Serial Numbers by Year
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1980: #9136701 – 9140300
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1981: #9140301 – 9145549
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1982: #9145550 – 9150699
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1983: #9150700 – 9153699
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1984: #9153700 – 9157249
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1985: #9157250 – 9160624
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1986: #9160625+
Key Specifications
| Feature |
Specification |
| Years Manufactured |
1991 – 1996 |
| Engine Model |
Case 504C (6-cylinder diesel) |
| Net Horsepower |
105 HP (78 kW) @ 2,200 rpm |
| Max Torque |
308 lb-ft (418 Nm) @ 1,400 rpm |
| Displacement |
336 cu in (5.5 L) |
| Transmission Type |
Power Shuttle (4 forward / 4 reverse) |
| Hydraulic Flow Rate |
30 gal/min (114 L/min) |
| Hydraulic Pressure |
2,500 psi (172 bar) |
| Operating Weight |
Approx. 18,100 lbs (8,210 kg) |
| Loader Bucket Capacity |
1.5 cu yd (1.15 m³) |
| Backhoe Digging Depth |
Up to 17.7' (5.4 m) |
| Breakout Force (Loader) |
13,000 lbs (5,897 kg) |
| Travel Speed (Max) |
23 mph (37 km/h) |
| Dimensions (L×W×H) |
23.7' × 7.7' × 10.8' |
Performance & Design Highlights
Upgraded Engine Performance
The Case 504C diesel engine delivers increased horsepower and torque over previous models, ideal for high-demand digging and loading applications.
Heavy-Duty Loader and Backhoe Setup
With reinforced steel components, the 680H is suited for large trenching, utility, and site prep operations.
High-Capacity Hydraulics
The 30 GPM hydraulic system allows faster response times and higher breakout force—excellent for clay and compacted material work.
Operator Comfort & Durability
Improved cab ergonomics, better sound insulation, and smoother joystick-style controls were introduced with the 680H generation.
Maintenance & Common Issues
Routine Maintenance
| Component |
Service Interval |
| Engine Oil & Filter |
Replace every 250 hours |
| Hydraulic Fluid & Filter |
Replace every 1,000 hours |
| Fuel Filter |
Replace every 500 hours |
| Transmission Fluid |
Change every 1,000 hours |
| Air Filter |
Clean every 250 hours; replace as needed |
| Cooling System |
Flush and inspect every 1,000 hours |
Common Issues & Fixes
| Issue |
Quick Fix |
| Shuttle Transmission Delay |
Check clutch packs; inspect shuttle pressure |
| Hydraulic Slow Response |
Replace filters; inspect pump wear |
| Loader Pin Wear |
Replace pins and bushings at pivot points |
| Overheating in Extended Use |
Clean radiator, fan belt tension, & check coolant level |
| Fuel System Air Leaks |
Tighten clamps; replace cracked fuel lines |