Every 2000 Hours or 2 Years
Operation 64
Change the Engine Coolant
WARNING: BEFORE DRAINING THE COOLING SYSTEM, WAIT UNTIL THE ENGINE TEMPERATURE IS BELOW 50°C (120°F) BEFORE REMOVING THE RADIATOR PRESSURE CAP. FAILURE TO DO SO CAN CAUSE PERSONAL INJURY FROM HEATED COOLANT SPRAY.
The cooling system must be clean to work correctly.. Drain the system, and flush with clean water.. If the system shows mineral buildup, scale, rust, or oil, clean with a
To drain the cooling system, first turn the temperature control knob in the cab to the maximum heat position.. Make sure the heater valve (1) on the rear/right of the engine is fully open..
Remove the radiator cap (2) from the top of the radiator..
WARNING: THE COOLANT SYSTEM OPERATES UNDER PRESSURE WHICH IS CONTROLLED BY THE RADIATOR PRESSURE CAP. IT IS DANGEROUS TO REMOVE THE PRESSURE CAP WHILE THE SYSTEM IS HOT. WHEN THE SYSTEM HAS COOLED, USE A THICK CLOTH AND TURN THE CAP SLOWLY TO THE FIRST STOP AND ALLOW THE PRESSURE TO ESCAPE BEFORE FULLY REMOVING THE CAP.
COOLANT SHOULD BE KEPT OFF THE SKIN. ADHERE TO THE PRECAUTIONS OUTLINED ON THE ANTIFREEZE AND INHIBITOR CONTAINERS, WHERE USED.
To drain the radiator, open the petcock (3) located at the bottom center of the radiator..
Drain all the coolant into a suitable container and follow all local laws and regulations for disposal..
1 
2
3
435/485/535