Yanmar YT
Power steering fluid capacity & service interval
Yanmar YT power steering fluid capacity is 31 liters. Service intervals include checking at 10 hours and changing at 600 hours or 24 months. The data covers 3 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
|
|
|
|
|
|
Additional Notes
- The Yanmar YT series power steering fluid is part of a shared system that also serves the transaxle and hydraulic functions, meaning the 31-liter capacity figure reflects the total fill volume for all three integrated circuits rather than a standalone power steering reservoir.
- A 31-liter capacity is notably large by agricultural equipment standards, consistent with a combined transaxle and hydraulic system where fluid volume supports both hydrostatic transmission operation and implement control alongside steering assist.
- The check interval is set at 10 hours of operation under normal use conditions, which in equipment service terminology indicates a very frequent inspection cycle typical of systems where fluid level directly affects multiple critical functions simultaneously.
- The change interval is specified at 600 hours or 24 months under normal use conditions, whichever comes first, meaning time elapsed can trigger a service requirement even when the hour threshold has not been reached.
- The YT118, YT120, and YT122 starting from 2019 all carry identical capacity, check, and change specifications, indicating no differentiation in the shared fluid system across the three model variants within the lineup.