Yanmar Tracked carriers
Transfer case fluid capacity & service interval
Yanmar tracked carriers utilize transfer case fluid with a capacity range of 2,5 to 9,5 liters. The service interval for fluid changes is 1000 hours. The data covers 3 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| C30R-2B (2008- ) |
|
| C30R-2 |
|
| C30R-2A ( -2008) |
|
Additional Notes
- The Yanmar Tracked Carriers transfer case fluid capacity varies across the C30R-2 model variants, with values ranging from 2.51 liters up to 9.5 liters depending on the specific configuration.
- The C30R-2 carries a transfer box capacity of 2.51 liters, and no service interval is listed for normal use conditions in the specifications.
- The C30R-2A, covering units up to 2008, holds a notably larger transfer box capacity of 9.5 liters, which reflects a significantly greater fluid volume than the base C30R-2 variant.
- The C30R-2A transfer box service interval under normal use conditions is set at 1000 hours, a time-based measurement common in equipment that does not accumulate mileage in the conventional sense.
- The C30R-2B, introduced from 2008 onward, carries a transfer box capacity of 7 liters, which is 2.5 liters less than the C30R-2A despite sharing the same 1000-hour change interval under normal use conditions.
- The shared 1000-hour drain interval between the C30R-2A and C30R-2B applies specifically to normal use conditions, meaning operations outside that classification are not addressed within the provided specifications.
- The capacity difference between the C30R-2A at 9.5 liters and the C30R-2B at 7 liters suggests a mechanical or structural revision to the transfer box assembly between the two production periods, as fluid capacity in a sealed gearbox unit is directly tied to internal volume.