Operation and maintenance manual
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10 mm
NOTE: The holes shown in the illustration are
drilled through. Apply liquid teflon sealant to the
capscrews. Install the aftercooler housing and a
new gasket.
Torque Value: 24 N*m [18 ft-lb]
8 mm
Install the coolant supply tube (1) and coolant
return tube (2). Install the air crossover tube (3).
Reinstall and bleed the high pressure fuel lines.
Torque Value: 8 N*m [6 ft-lb]
Caution: The system must be filled slowly to prevent
air locks. Be sure to open the engine and aftercooler
vents to allow air to escape as the system is filled.
Fill the coolant system with a mixture of 50% water and
50% ethylene-glycol type antifreeze.
ChargeAirCooler‐LeakCheck
NOTE: The long term integrity of the charge air cooler
system is the responsibility of the vehicle and component
manufacturers: however, the following symptoms can be
checked by any Cummins Authorized Repair Location: