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Yanmar 6LT Series - Change Engine Coolant

Yanmar 6LT Series
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INSPECTION AND MAINTENANCE
56
6LT Series Operation Manual
CHANGE ENGINE COOLANT
Only proceed when the engine is not running and is at low temperature in order to avoid the risk of burns.
Use suitable containers to ensure that the coolant is not dispersed into the environment.
Remove the caps of the cooling system components and wait until the system has emptied completely
(the position of the caps is indicated on page 10). After emptying, refit the caps in their housings,
ensuring that the sealing rings are intact.
Refill the circuit completely as indicated in the table on page 28.
Run the engine briefly while observing the coolant level at the filler cap and top up as required.
Bleed the coolant circuit as follows:
Leave the engine idling and carefully loosen the screw positioned on the coolant tank beside the cap.
Once a sufficient amount of time has passed, tighten the screw to the specified torque and stop the
engine.
Check the coolant level again and top up if necessary.

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