Bell Equipment Graders

Differential fluid capacity & service interval

Bell Equipment Graders use differential fluid with a capacity of 36 liters. Service intervals include checking at 500 hours and changing at 1000 hours. The data covers 5 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
  • 670G, John Deere PowerTech 6068H (Tier 2/ Stage II)
  • Front
  • Use: Normal
  • Capacity 36 liter
  • Check 500 hours
  • Change 1000 hours
  • 672G, John Deere PowerTech 6068H (Tier 2/ Stage II)
  • Front
  • Use: Normal
  • Capacity 36 liter
  • Check 500 hours
  • Change 1000 hours
  • 770G, John Deere PowerTech 6090H (Tier 2/ Stage II)
  • Front
  • Use: Normal
  • Capacity 36 liter
  • Check 500 hours
  • Change 1000 hours
  • 772G, John Deere PowerTech 6090H (Tier 2/ Stage II)
  • Front
  • Use: Normal
  • Capacity 36 liter
  • Check 500 hours
  • Change 1000 hours
  • 872G, John Deere PowerTech 6090H (Tier 2/ Stage II)
  • Front
  • Use: Normal
  • Capacity 36 liter
  • Check 500 hours
  • Change 1000 hours

Additional Notes

  • Across all five Bell Equipment Grader configurations listed — the 670G, 672G, 770G, 772G, and 872G — the front differential fluid capacity is uniformly specified at 36 liters under normal use conditions.
  • A 36-liter front differential capacity is a substantial volume, consistent with heavy-duty motor grader axle assemblies where large fluid reserves support sustained load-bearing and heat dissipation during grading operations.
  • The 670G and 672G share the John Deere PowerTech 6068H engine (Tier 2/Stage II), while the 770G, 772G, and 872G are paired with the larger John Deere PowerTech 6090H engine (Tier 2/Stage II), yet both engine groupings carry the same 36-liter front differential specification.
  • The check interval for front differential fluid across all five configurations is set at 500 hours under normal use, meaning fluid condition and level are to be inspected at that point before the full change interval is reached.
  • The change interval is specified at 1000 hours for all five configurations under normal use, placing the fluid change at exactly double the check interval and establishing a structured two-stage service cycle for the front differential.
  • The 672G and 772G designations typically indicate all-wheel-drive variants within their respective size classes, yet the front differential fluid capacity and service intervals for both match their non-AWD counterparts, the 670G and 770G, at 36 liters, 500-hour checks, and 1000-hour changes.
  • The 872G represents the largest model in the listed specifications and, despite belonging to a higher machine weight class than the 670G or 672G, carries the same front differential fluid capacity and identical service intervals as all other configurations in the dataset.

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