Ursus Bison 200 series
Differential fluid capacity & service interval
Ursus Bison 200 series differential fluid capacity is 3,5 liters. Service intervals include checking at 200 hours and changing at 400 hours. The data covers 6 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
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Additional Notes
- The front differential fluid capacity across all six Ursus Bison 200 series variants listed — the 207, 208, 209, 210, 212, and 214 — is uniformly 3.5 liters. In agricultural equipment, a front differential fill of this volume is consistent with a compact axle housing designed for moderate torque loads rather than heavy-duty planetary final drives, which typically require significantly larger fluid volumes.
- The Bison 207, 208, 209, and 210 are each listed in both 2WD and 4WD configurations, while the Bison 212 and 214 are listed exclusively as 4WD variants. Despite this drivetrain distinction, the front differential fluid capacity of 3.5 liters remains identical across all configurations.
- All six variants share the same check interval of 200 operating hours. In tractor service schedules, hour-based intervals rather than calendar-based ones reflect the variable annual usage patterns typical of agricultural machinery, where a tractor may accumulate hours rapidly during seasonal fieldwork or sit idle for extended periods.
- The fluid change interval is set at 400 operating hours for all listed variants, exactly double the check interval. This two-to-one ratio between inspection and replacement is a common engineering convention in drivetrain maintenance, allowing one intermediate inspection to confirm fluid condition before the scheduled change.
- All specifications are designated for normal use conditions. In heavy equipment service documentation, a normal use designation typically refers to standard field operation without the accelerated wear factors associated with severe use, such as continuous heavy draft loads, extreme temperatures, or frequent water crossings, which would otherwise warrant shorter intervals.
- The starting year of 1987 applies uniformly to all six Bison 200 series variants in the specifications. The front differential fluid capacity and service intervals are consistent across the entire model range from that point forward, indicating no variation in differential specification was introduced at the start of production for any of the listed variants.