DOOR AS 2406127 - Caterpillar

1. Remove shield (3) from the shutoff housing.2. Turn off the air supply to the engine.3. Disconnect tube assemblies (1) and remove bolts (2). Remove air shutoff cylinder (4) and the flange from the shutoff housing. 4. Remove pipes (5) from the turbochargers and shutoff housing. 5. Remove the bolts and remove air intake shutoff (6) from the engine.Install Air Intake Shutoff
1. Put the gasket and air intake shutoff (1) in position and install the bolts that hold it in position. 2. Make sure the O-ring seals, the flanges and the gaskets are in position on pipes (2). Install pipes (2) between the turbochargers and shutoff housing.3. Install the flange, shutoff cylinder (5) and shield (4) on the shutoff housing. 4. Connect tube assemblies (3) to the shutoff cylinder and open the air supply to the engine.Disassemble Air Intake Shutoff
start by:a) remove air intake shutoff 1. Remove the four bolts (1) to remove the spring and valve assembly (2) from the shaft. 2. Remove the bolts and nuts to remove valve assembly (2) from spring (3). 3. Remove the bolts and remove arm (4) and latch (5) from the shaft. 4. Remove the two bolts (6) and the washers to remove knob (7), the cover and shaft from the shutoff housing. 5. Remove bolt (10) and the washer to remove knob (7) and cover (9) from shaft (8).6. Remove carrier (12) from the shutoff housing (11). 7. Remove plug (14), the spring and pin from carrier (2).8. Remove seal (13) from the shutoff housing. If necessary, remove bushings (15) for shaft (8) from the housing.Assemble Air Intake Shutoff
1. Use tooling (A) to install the bushings and seal in the shutoff housing. Install the seal with the lip of the seal toward the inside of the housing as shown. Check the inside diameter dimension of the bearings after installation. The correct dimension is 19.050 0.044 mm (.750 .002 in.). 2. Install the pin, the spring and plug (2) in carrier (1).3. Install carrier (1) in the shutoff housing and tighten the carrier to a torque of 120 15 N m (90 11 lb.ft.). 4. Put cover (4) and knob (5) on shaft (3) and install the bolt and washer to hold knob (5) on shaft (3). 5. Put shaft (3) in position through the seal in the shutoff housing and put bushing (7) and spring (6) over the end of the shaft.6. Push the shaft all the way in the housing and install the bolts and washers to hold cover (4) in position. 7. Make sure the end of spring (6) is engaged with the hole in the shutoff housing and install latch (9) to connect spring (6) to the shaft. Install arm (8) on the shaft. 8. Put valve assembly (11) in position on spring (10) and install the bolts, washers and nuts to