C6.6 Industrial Engine Inlet Air Control - Remove - NRS Inlet Air Mixer Caterpillar


Inlet Air Control - Remove - NRS Inlet Air Mixer
`
1.1. Removal Procedure

Removal Procedure

------ WARNING! ------

Sulfuric Acid Burn Hazard may cause serious personal injury or death.

The exhaust gas cooler may contain a small amount of sulfuric acid. The use of fuel with sulfur levels greater than 15 ppm may increase the amount of sulfuric acid formed. The sulfuric acid may spill from the cooler during service of the engine. The sulfuric acid will burn the eyes, skin and clothing on contact. Always wear the appropriate personal protective equipment (PPE) that is noted on a material safety data sheet (MSDS) for sulfuric acid. Always follow the directions for first aid that are noted on a material safety data sheet (MSDS) for sulfuric acid.



NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.




    Illustration 1g02169793

  1. Loosen hose clamps (8). Disconnect hose assembly (7) from connection (9) for inlet air control (6).

  2. Slide locking tab for engine wiring harness assembly (1) into the unlocked position. Disconnect engine wiring harness assembly (1) from wiring harness assembly (4) for the NRS valve. Slide the connection for wiring harness assembly (4) from bracket (2).

  3. Slide locking tab for the engine wiring harness assembly (3) into the unlocked position. Disconnect the engine wiring harness assembly from wiring harness assembly for wastegate solenoid (5). Slide connection for wiring harness assembly for wastegate solenoid (5) from bracket (2).

  4. Slide locking tab for engine wiring harness assembly (10) into the unlocked position. Disconnect the engine wiring harness assembly from engine inlet throttle valve (11).

  5. Cut all the cable straps in order to allow the engine wiring harness assembly to be positioned away from inlet air control assembly (6).

  6. Loosen hose clamps (12) on the hose assembly that connects inlet air control assembly (6) to inlet elbow (13).


    Illustration 2g02169794


    Illustration 3g02351557

  7. Disconnect temperature sensor (16) from the inlet air control assembly. Refer to Disassembly and Assembly, "Temperature Sensor (Cooled Exhaust Gas) - Remove and Install" for the correct procedure.

  8. Slide clip (19) along the hose assembly. Remove the hose assembly from the wastegate actuator.

  9. Loosen banjo bolt (22) for tube assembly (23).

  10. Remove bolt (17) (not shown) and bolt (24) from tube assembly (23).

  11. Remove banjo bolt (22) and remove sealing washers (21) (not shown).

  12. Remove tube assembly (23) from inlet air control assembly (6).

  13. Remove hose clamp (18) and hose clamp (20). Remove hose assembly (26) and hose assembly (27) from the connections on inlet air control assembly (6).

  14. Remove bolts (14) and remove bolts (25).

  15. Remove inlet air control assembly (6).

  16. Remove gasket (15) (not shown) from inlet air control assembly (6).


    Illustration 4g02169795

  17. If necessary, follow Step 17.a through Step 17.c in order to remove bracket (29).

    1. Cut cable straps (31).

    2. Remove bolts (28).

    3. Remove bracket (29) from cylinder head (30).

Information System:

C6.6 Industrial Engine Fuel Injection Lines - Install
C6.6 Industrial Engine Fuel Injection Lines - Remove
C6.6 Industrial Engine Fuel Manifold (Rail) - Remove and Install
C6.6 Industrial Engine Fuel Filter Base - Remove and Install - Single Secondary Fuel Filter
C6.6 Industrial Engine Fuel Priming Pump - Remove and Install - Electric Fuel Lift Pump (EFLP)
374F Excavator Machine System Grease Lines
303.5D, 304D, 305.5D and 305D Mini Hydraulic Excavators Engine Supplement Fuel Transfer and Priming Pump - Remove and Install
349F and 352F Excavators Hydraulic System Pump Control (Negative Flow) - Test
C4.4 Industrial Engine Electronic Control System
C4.4 Industrial Engine Power Sources
C4.4 Industrial Engine Fuel Injection
C4.4 Industrial Engine Introduction
C6.6 Industrial Engine Inlet Air Control - Install - NRS Inlet Air Mixer
C6.6 Industrial Engine Fuel Injection Pump - Remove
C6.6 Industrial Engine Fuel Injection Pump - Install
C6.6 Industrial Engine Fuel Injection Pump Gear - Remove
C7.1 Industrial Engine Position the Valve Mechanism Before Maintenance Procedures
C4.4 Industrial Engine Position the Valve Mechanism Before Maintenance Procedures
303.5D, 304D, 305.5D and 305D Mini Hydraulic Excavators Engine Supplement Fuel Shutoff Solenoid - Remove and Install
303.5D, 304D, 305.5D and 305D Mini Hydraulic Excavators Engine Supplement Engine Oil Filter and Oil Filter Base - Remove and Install
303.5D, 304D, 305.5D and 305D Mini Hydraulic Excavators Engine Supplement Fan - Remove and Install
303.5D, 304D, 305.5D and 305D Mini Hydraulic Excavators Engine Supplement Engine Oil Cooler - Remove and Install
303.5E2 CR, 304E2 CR, 305.5E2 CR and 305E2 CR Mini Hydraulic Excavators Engine Supplement Hood - Remove and Install
303.5D, 304D, 305.5D and 305D Mini Hydraulic Excavators Engine Supplement Refrigerant Condenser - Remove and Install