Navistar MaxxForce DT, Operation And Maintenance Manual

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SECTION 5 – MAINTENANCE SCHEDULE AND SERVICE PROCEDURES
Pressure test the air induction system.
• For inspection procedures, see the applicable Engine
Diagnostic Manual .
• Have an authorized service provider pressure test the air
induction system.
EXTENDED LIFE COOLANT (ELC) EXTENDER
Service Interval: 150,000 miles (240,000 km), 30 months or
6,000 hours
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.
1. Remove coolant tank cap.
2. Confirm coolant system capacity.
3. According to Cooling System Capacity in the ELC Extender
table, drain the correct volume of coolant from the cooling
system.
ELC Extender
Cooling System
Capacity Drain ELC Coolant Add ELC Extender
22-30 liters (6-8
gallons) 0.2 liter (0.5 quart
US) 0.2 liter (0.5 quart
US)
30-49 liters (8-13
gallons) 0.5 liter (1.0 quart
US) 0.5 liter (1.0 quart
US)
49-83 liters (13-22
gallons) 0.7 liter (1.5 quart
US) 0.7 liter (1.5 quart
US)
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
D6210, Standard Specification for fully Formulated Glycol
Base Engine Coolant for Heavy Duty Engines.
Coolant
service intervals are more frequent with conventional
coolants.
4. Add the same volume of Extender to the cooling system.
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