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Section 4 - Lubrication & Maintenance Every 2000 Hours or 2 Years

To remove the coolant in the engine block, disconnect

4

the lower radiator hose (4) from the base of the radiator..

This will drain whatever coolant is in the water jacket

 

of the engine..

 

Drain all the coolant into a suitable container and follow all local laws and regulations for disposal..

Turn off the coolant filter shutoff valve so the filter is isolated from the cooling system during cleaning and flushing operations..

IMPORTANT: Failure to isolate the cooling system

 

filter by closing the shutoff valve will contaminate

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the cooling system filter, and the filter will have to be

 

replaced whether its change interval has been reached

5

or not.

Flushing the Cooling System

 

Refer to page 8-25 of the Cummins QSX15 engine operation and maintenance manual supplied with the tractor for the correct coolant system flushing schedule and procedure..

After the cooling system is cleaned, retighten the petcock (3) and reinstall the lower radiator hose (4).. Open the cooling system filter shutoff valve (5)..

ON OFF

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