Kubota — Cleaning Water Jacket and Radiator Interior
Maintenance · Cooling system
From a Kubota service manual covering: GL 11000, GL 7000, GL 9000, GL11000, GL11000-STD, GL11000-USA, GL6000, GL6000-AUS, GL6000-STD, GL7000, GL7000-STD, GL7000-USA…. Check it applies to your exact model before use.
Applies to: Kubota GL 11000, Kubota GL 7000, Kubota GL 9000, Kubota GL11000-STD, Kubota GL11000-USA, Kubota GL6000, Kubota GL6000-AUS, Kubota GL6000-STD, Kubota GL7000-STD, Kubota GL7000-USA, Kubota Z482-E2B-SEC-2 engine, Kubota Z482-E2B-SEC-3 engine
Before you start
- Do not start engine without coolant.
Procedure
- Stop the engine and let cool down.
- Open the water drain plug and remove radiator cap to drain coolant.
- Close the water drain plug after all coolant is drained.
- Fill with clean water and cooling system cleaner.
- After flushing, fill with clean water and anti-freeze until coolant level is just below port.
- Fill with coolant up to FULL mark on recovery tank.
- Start and operate the engine for few minutes, then stop and let cool.
- Check coolant level of recovery tank and add coolant if necessary.
Specs & values
- Anti-freeze mixing ratio must be less than 50 %
Full service-parts list: Kubota GL 11000 →, Kubota GL 7000 →, Kubota GL 9000 →, Kubota GL11000-STD →, Kubota GL11000-USA →, Kubota GL6000 →, Kubota GL6000-AUS →, Kubota GL6000-STD →, Kubota GL7000-STD →, Kubota GL7000-USA →, Kubota Z482-E2B-SEC-2 engine →
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.