Kubota WG972-GL-E3F — Cleaning Water Jacket and Radiator Interior
Maintenance · Cooling system
For the Kubota WG972-GL-E3F, from the Kubota service manual.
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Before you start
- Do not remove the radiator cap when the engine is hot.
- Do not start engine without coolant.
Procedure
- Stop the engine and let cool down.
- Open the radiator drain plug and remove the radiator cap; open the drain valve of engine body.
- After all coolant is drained, close the drain plug.
- Fill with clean water and cooling system cleaner.
- Follow directions of the cleaner instruction.
- After flushing, fill with clean water and anti-freeze until the coolant level is just below the port. Install the radiator cap securely.
- Fill with coolant up to FULL mark on the recovery tank.
- Start and operate the engine for few minutes.
- Stop the engine and let cool. Check coolant level and add if necessary.
Specs & values
- Anti-freeze mixing ratio must be less than 50 %
Source: Kubota service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.