SECTION 5 – MAINTENANCE SCHEDULE AND SERVICE PROCEDURES
Service Procedures (cont.)
SERVICE COOLING SYSTEM (cont.)
NOTE:
ELC 50/50 Premix is the standard factory fill for the
cooling system. ELC 50/50 Premix is used to replenish coolant
loss and ensure that glycol/water concentrations stay in balance.
If a customer wishes to use a conventional (non-OAT ELC)
coolant, it should minimally meet ASTM D 6210, Standard
Specification for fully - Formulated Glyc ol Base Engine Coolant
for Heavy Duty Engines.
9. Slowly fill cooling system with new ELC 50/50 Premix or
Concentrate and water mixture until coolant is at the mid
point between the ADD and FULL levels of the coolant tank.
10. Install and tighten the coolant tank cap until the plastic cap
clicks or the metal cap runs up against the detent.
CAUTION: To prevent engine damage, disconnect electrical
connector at the EGR valve before running engine to purge air
from cooling system. Failure to do so could cause failure of
EGR cooler.
11. Disconnect electrical connector at the EGR valve.
12. Start the engine.
13. Allow the engine to operate at a fast idle until the engine
reaches normal operating temperature.
14. As the engine warms up, make sure coolant is flowing
through coo lant line – the coolant line will feel warm to the
touch.
15. After engine reaches normal operating temperature and
the thermostat has opened, allow engine to run for 5 to 10
minutes, then shut engine off.
16. Connect electrical connector at the Exhaust Gas
recirculation (EGR) valve. Clear any Diagnostic Trouble
Codes (DTC) that may have occurred. See the Engine
Diagnostic Manual for further information.
WARNING: To prevent personal injury or death, do the
following when removing the radiator cap or coolant tank
cap:
• Allow the engine to cool for 15 minutes or more.
• Wrap a thick cloth around the radiator cap or coolant tank
cap.
• Loosen cap slowly a quarter to half turn to vent pressure.
• Pause for a moment to avoid being scalded by steam.
• Continue to turn cap counterclockwise to remove.
17. If necessary, ad d coolant t o th e coo lant tank to bring t he level
up to the C OLD MAX mark.
Form No. 1172040R1
Page 92
Printed in the United States of America
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