Cummins ISX11.9 CM2250 – Service Manual 011-042   Aftertreatment Fuel Injector

Inspect the injector tip for cracks or other damage. Replace if necessary.

Clean and inspect the adapter tube injector mounting surface.

Inspect the harness and connector pins for the following:

• Loose connector
• Corroded pins
• Bent or broken pins
• Pushed back or expanded pins
• Moisture in or on the connector
• Missing or damaged connector seals
• Dirt or debris in or on the connector pins
• Connector shell broken
• Wire insulation damage
• Damaged connector locking tab.

Use the following procedure for general inspection techniques. Refer to Procedure 019-361 in Section 19.

Install a new fibrous insulator.

Install a new metal gasket.

NOTE: The fibrous insulator will be against the injector.

Install the aftertreatment injector onto the adapter pipe.

NOTE: Be sure the aftertreatment injector harness is not touching the adapter pipe.

NOTE: The tall side of the injector and injector heat shield should be facing the turbocharger side.

Install new capscrews. Anti-seize compound will already be applied to the capscrews.