Claas Ares 800

Automatic transmission fluid capacity & service interval

Claas Ares 800 automatic transmission fluid capacity is 120 liters. Service intervals include checking every 10 hours and changing every 1200 hours or 12 months. The data covers 3 configurations.

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

TypeSpecifications
  • Ares 816 (H4412) (2002-2007)
  • Hydraulic system
  • Use: Normal
  • Capacity 120 liter
  • Check 10 hours
  • Change 1200 hours/ 12 months
  • Ares 826 (H4422) (2002-2007)
  • Hydraulic system
  • Use: Normal
  • Capacity 120 liter
  • Check 10 hours
  • Change 1200 hours/ 12 months
  • Ares 836 (H4432) (2002-2007)
  • Hydraulic system
  • Use: Normal
  • Capacity 120 liter
  • Check 10 hours
  • Change 1200 hours/ 12 months

Additional Notes

  • The Claas Ares 800 series transmission/hydraulic system carries a fluid capacity of 120 liters across the Ares 816 (H4412), Ares 826 (H4422), and Ares 836 (H4432) variants. A shared capacity at this scale is characteristic of an integrated transmission and hydraulic circuit, where a single fluid reservoir serves both the gearbox and the implement hydraulics simultaneously.
  • The 120-liter figure applies uniformly across all three model codes for the 2002-2007 production span, with no variation recorded between the H4412, H4422, and H4432 configurations.
  • A fluid level check interval of 10 operating hours is specified for all three variants under normal use conditions. In agricultural machinery, a 10-hour check interval reflects the high mechanical load and heat cycling typical of field operations, where fluid level monitoring is more frequent than in on-road vehicles.
  • The fluid change interval is set at 1200 hours or 12 months, whichever occurs first, under normal use conditions. The dual-trigger structure means a tractor used lightly enough to accumulate fewer than 1200 hours in a year would still require a fluid change at the 12-month mark.
  • At 1200 operating hours, the change interval represents a relatively extended service cycle for an integrated transmission/hydraulic system, consistent with the fluid volume involved. Draining and refilling a 120-liter system is a significant service operation, and the extended interval reflects the fluid capacity's ability to sustain lubricant quality over prolonged use.

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