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Read articles →An official step-by-step procedure video covering the full transmission hydraulic oil change on the YT235, including both the hydraulic filter and line filter. It specifies the service intervals (first 50 hours, then every 300), the exact fluid, Yanmar TF-500A at 8.2 gallons, and the correct tools, filter installation technique, and post-service leak check. Best for YT235 owners doing this service themselves for the first time.
Posted by the YANMAR//Academy channel, so this is manufacturer-produced instructional content rather than an independent owner's perspective.
This task is due after the first 50 hours of operation, at 300 hours, and every 300 hours thereafter.
Approximately 8.2 gallons of Yanmar TF-500A hydraulic oil, added through a funnel while monitoring the sight glass to avoid overfilling.
The hydraulic filter is located behind the left rear wheel under the tractor and is removed using a filter or strap wrench.
Start the tractor and visually inspect the transmission and area beneath, check drain plugs, turn off and check filter bases, then restart and cycle hydraulic controls.
