Bell Equipment Graders

Coolant capacity & service interval

Bell Equipment Graders use coolant with a capacity range of 44 to 48,5 liters. The service interval for coolant is 6000 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)
  • Use: Normal
  • Capacity 44 liter
  • Change 6000 hours
672G, John Deere PowerTech 6068H (Tier 2/ Stage II)
  • Use: Normal
  • Capacity 44 liter
  • Change 6000 hours
770G, John Deere PowerTech 6090H (Tier 2/ Stage II)
  • Use: Normal
  • Capacity 48,5 liter
  • Change 6000 hours
772G, John Deere PowerTech 6090H (Tier 2/ Stage II)
  • Use: Normal
  • Capacity 48,5 liter
  • Change 6000 hours
872G, John Deere PowerTech 6090H (Tier 2/ Stage II)
  • Use: Normal
  • Capacity 48,5 liter
  • Change 6000 hours

Additional Notes

  • The 670G and 672G graders, both fitted with the John Deere PowerTech 6068H engine under Tier 2/Stage II emissions classification, share an identical cooling system capacity of 44 liters, indicating a common cooling circuit design across the two models despite their different grader designations.
  • The 770G, 772G, and 872G graders are each equipped with the larger John Deere PowerTech 6090H engine and carry a cooling system capacity of 48.5 liters, reflecting the greater thermal management demands of the higher-displacement powerplant compared to the 6068H-equipped models.
  • The step from 44 liters in the 6068H-powered graders to 48.5 liters in the 6090H-powered graders represents a difference of 4.5 liters, which corresponds directly to the increased engine displacement and associated heat rejection requirements of the larger six-cylinder unit.
  • All five grader configurations carry a coolant change interval of 6000 hours under normal use conditions, placing the service event well within the long-interval maintenance category typical of heavy construction equipment operating on extended schedules.
  • The uniform 6000-hour change interval across both the 6068H and 6090H engine families suggests the cooling system service schedule is consistent regardless of engine size within the Bell Equipment Graders range covered by these specifications.
  • A 44-liter cooling system capacity, as seen in the 670G and 672G, is a substantial fill volume, characteristic of large-format graders where the cooling circuit encompasses not only the engine block and cylinder head but also transmission oil coolers and hydraulic heat exchangers integrated into the same loop.

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