CAP 1H9588 - Caterpillar

Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Ensure that the wiring harness assembly is correctly routed and the cable straps are not over tightened. Over tightening of the cable straps will damage the wiring harness convoluting.
Required Parts
Table 1
Required Parts
New Part Number Parts Description Qty
217-9039 Cable Strap 4
345-0835 Gasket 1
466-7876 Valve 1
466-7877 Valve 1 Removal Procedure
Turn the battery disconnect switch to the OFF position.
For some application an Engine Mounted Aftertreatment (EMAT) may be installed, removal of the EMAT may be required to carry out an effective repair. If necessary, refer to Disassembly and Assembly, Clean Emissions Module - Remove and Install for the correct procedure.
Illustration 1 g06014160
Disconnect harness assembly (1) for the exhaust gas valve (4) from the engine harness assembly.
Cut cable strap (2) and cable straps (6). Disconnect harness assembly (3) for temperature sensor (7) from the engine harness assembly.
Illustration 2 g06014173
Remove the Allen head bolts (8) and remove the bracket (5) from NRS Induction Mixer (9).
Illustration 3 g06014402
Follow Step 6.athrough Step 6.d to install Allen head bolts (8) to NRS Induction Mixer (9) and to remove exhaust gas valve (4) from NRS Induction Mixer (9).
Install the Allen head bolts (8) and leave a Gap (W) of 6 mm (0.236 inch) between exhaust gas valve (4) and the Allen head bolts. Leaving a gap between the Allen head bolts will support the exhaust gas valve as the exhaust gas valve is driven out of NRS Induction Mixer (9).
Position a suitable drift in Position (X) and Position (Y) strike the drift, alternate between Position (X) and Position (Y) to remove exhaust gas valve (4) from NRS Induction Mixer (9).Ensure that the exhaust gas valve is not subjected to rotational force, as a rotational force could cause the exhaust gas valve to bind in the NRS Induction Mixer.
Remove Allen head bolts (8) and remove exhaust gas valve (4) from NRS Induction Mixer (9).
Remove gasket (10) (not shown).
If the above procedure does not remove the exhaust gas valve (4) from NRS Induction Mixer (9) and the Disassembly and Assembly, Inlet Air Control (NRS Induction Mixer) - Remove and Install for the correct procedure.Installation Procedure
Illustration 4 g06014408
Clean and remove with a light grade scot pad any soot deposits or burrs left in the bore of the exhaust gas valve in area (11) of NRS Induction Mixer (9).
Ensure that area (11) is not scuffed or damaged when the cleaning procedure is carried out. Use suitable cleaning products to wash out and dirt and residue.
Illustration 5 g06014438
Illustration 6 g06014435
Illustration 7 g06014160
Select the correct exhaust gas valve (4) and a new gasket (10) (not shown) from the Table 1.
Position gasket (10) (not shown) onto exhaust gas valve (4). Ensure that the gasket is correctly orientated on the exhaust gas valve.
Lubricate exhaust gas valve (4) with clean engine oil in Positions (Z).
Install exhaust gas valve (4) into NRS Induction Mixer (9). Ensure that the exhaust gas valve slides into the NRS Induction Mixer without binding. If binding is felt on installation of the