NUMBER: 9 05–09 S.M. REF.: Listed in Table 11 ENGINE: DD13 DATE: September 2009 SUBJECT: REMOVAL, INSPECTION, AND INSTALLATION OF EXHAUST GAS RECIRCULATION ACTUATOR PULL ROD ADDITIONS, REVISIONS, OR UPDATES Publication Number Platform Section Title Change Page Number(s) DDC-SVC-MAN-0050 DD13 5.2 Exhaust Gas Recirculation Valve Actuator The EGR Actuator Pull Rod design has been changed. Procedures have been revised and added to this section. 5–7 NOTE: Page numbers are based on the most recent version of the individual publication and may be adjusted throughout the annual print cycle. Table 1 5.2 EXHAUST GAS RECIRCULATION VALVE ACTUATOR Exhaust Gas Recirculation (EGR) is controlled by an EGR valve and actuator . The EGR actuator opens and closes the valve to achieve the desired flow through the EGR cooler where high temperature gas is cooled then directed through a mixing pipe where it is mixed with air from the Charge Air Cooler (CAC) and directed to the cylinders. The Motor Control Module (MCM) actuates the EGR valve with a CAN signal. 9. Clamping Nut 1. Bolt 2. Exhaust Gas Recirculation Valve Actuator 10. Fitting 3. Spacer 11. Seal Ring 4. Spacer 12. Coolant Inlet Line 5. Lever 13. Coolant Outlet Line 6. Bolt 14. Banjo Bolt 7. Clamping Nut 15. Harness Plug 8. Actuator Pull Rod Figure 1 EGR Valve Actuator and Related Parts 5.2.1 REMOVAL OF EXHAUST GAS RECIRCULATION VALVE ACTUATOR Remove as follows: NOTE: The clamping nut and actuator rod must remain installed to the actuator linkage when removing or installing the lock nut to avoid damage to the valve actuator gears. 1. Drain the coolant. Refer to section . 2. Remove one nut connecting the actuator to the linkage and remove linkage from the actuator. 3. Remove coolant line from the actuator and cylinder block. 4. Remove coolant line from the actuator and water manifold. 5. Disconnect actuator sensor from sensor harness. 6. Remove three bolts and washers from actuator and remove actuator from cylinder block. 18.104.22.168 INSPECTION OF THE EXHAUST GAS RECIRCULATION VALVE ACTUATOR Inspect the EGR valve /actuator and actuator for damage and replace if necessary. 5.2.2 INSTALLATION OF EXHAUST GAS RECIRCULATION VALVE ACTUATOR Installation steps are as follows: NOTICE: Ensure the bracket and exhaust manifold are at ambient temperature when the actuator bracket bolts are torqued. 1. Install EGR valve actuator onto cylinder block housing three bolts and two spacers. Torque bolts to 30 N·m (22 lb·ft). 2. Install EGR valve actuator rod onto the actuator, apply a small amount of copper based anti-sieze compound to the nut threads and tighten. Torque nut to 20 N·m (15 lb·ft). 3. Install the coolant line to the actuator and fitting on cylinder block. Tighten coolant line to actuator to 25 N·m (18 lb·ft). Tighten coolant line to fitting on cylinder block 40 N·m (29 lb·ft). 4. Install the coolant line to the actuator and water manifold. Tighten coolant line to 35 N·m (26 lb·ft). 5. Connect actuator sensor to engine harness. 6. Fill the coolant system. Refer to section . 5.2.3 REMOVAL OF ACTUATOR PULL ROD The two actuator pull rod designs are shown below. The actuator pull rods are interchangeable. Figure 2 Actuator Pull Rod Applications Remove as follows: NOTE: The clamping nut and actuator pull rod must remain installed to the EGR valve linkage when removing or installing the lock nut to avoid damage to the EGR valve actuator gears. 1. Shut off the engine, apply the parking brake, chock the wheels, and perform any other applicable safety steps. 2. Mark actuator pull rod in relation to EGR actuator for proper assembly. 3. Loosen and remove clamping nut from EGR valve linkage stud. 4. With actuator pull rod still on EGR valve linkage stud, remove clamping nut from EGR actuator linkage. 5. Remove actuator pull rod. 22.214.171.124 INSPECTION OF ACTUATOR PULL ROD 1. Inspect the actuator pull rod for binding, looseness or damage to either set of bearings (1). If damaged, replace the actuator pull rod. 5.2.4 INSTALLATION OF ACTUATOR PULL ROD Install as follows: NOTE: If installing a new style actuator pull rod, the end with the off-center bearing is attached at the EGR valve and the part number is facing away from the engine. 1. Install actuator pull rod on EGR valve linkage stud and EGR valve actuator linkage. 2. With the actuator pull rod installed on the EGR valve and the EGR valve actuator, apply a small amount of copper-based anti-seize compound to the nut threads. Install and torque to 20 N·m (15 lb·ft). ADDITIONAL SERVICE INFORMATION Additional service information is available in Power Service Literature. Detroit Diesel®, DDC®, Series 60® and the spinning arrows design are registered trademarks of Detroit Diesel Corporation. © Copyright 2009 Detroit Diesel Corporation. All rights reserved. Printed in U.S.A.
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