Prentice Feller bunchers

Coolant capacity & service interval

Prentice Feller bunchers utilize coolant with a capacity range of 45 to 61 liters. Service intervals include checking every 10 hours and changing every 72 months or 12000 hours. The data covers 5 configurations.

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

TypeSpecifications
2470C, W2M (2012- )
  • Use: Normal
  • Capacity 61 liter
  • Check 10 hours
  • Change 72 months/ 12000 hours
2570C, W57 (2012- )
  • Use: Normal
  • Capacity 45 liter
  • Check 10 hours
  • Change 72 months/ 12000 hours
2670C, W67 (2012- )
  • Use: Normal
  • Capacity 45 liter
  • Check 10 hours
  • Change 72 months/ 12000 hours
2570C, F1B (2009- )
  • Use: Normal
  • Capacity 45 liter
  • Check 10 hours
  • Change 72 months/ 12000 hours
2670C, B3E (2009- )
  • Use: Normal
  • Capacity 45 liter
  • Check 10 hours
  • Change 72 months/ 12000 hours

Additional Notes

  • The Prentice Feller Buncher 2470C with the W2M engine carries a cooling system capacity of 61 liters, a notably larger volume than the 45-liter capacity shared across the 2570C and 2670C configurations. A higher coolant volume generally reflects a larger or more thermally demanding engine requiring greater heat dissipation.
  • The 45-liter cooling system capacity applies uniformly to the 2570C F1B, 2570C W57, 2670C B3E, and 2670C W67 configurations, indicating a shared cooling system architecture across those engine variants despite differences in engine designation.
  • All five configurations share an identical change interval of 72 months or 12,000 hours under normal use conditions. The dual-trigger structure means whichever threshold is reached first governs the service event, a common approach in heavy equipment to account for both calendar aging and operational wear of coolant additives.
  • The 10-hour check interval applies to all listed configurations under normal use. In heavy forestry equipment, a 10-hour cycle typically aligns with daily or near-daily inspection routines, reflecting the high thermal and mechanical stress placed on cooling systems in felling operations.
  • The F1B and B3E engine variants in the 2570C and 2670C models carry a starting year of 2009, while the W2M, W57, and W67 variants across the same model lines carry a starting year of 2012, indicating a later introduction of the W-series engine options within the Feller Buncher lineup.
  • The 72-month change interval represents a six-year calendar limit, which is a long service life typical of modern extended-life coolant formulations. At 12,000 hours, the operational threshold reflects sustained heavy-duty use before chemical degradation of corrosion inhibitors becomes a concern.

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