HOSE AS 3749947 - Caterpillar

Removal Procedure
Start By:
Install the wheel chocks. Refer to Disassembly and Assembly, "Wheel Chock (Front and Rear) - Remove and Install".
Connect the frame lock link. Refer to Disassembly and Assembly, "Frame Lock Link - Separate and Connect".Note: Install caps and plugs on all openings in order to prevent dirt or debris from entering the system. Cleanliness is an important factor. Before the removal procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal components.Note: The following procedure outlines the removal of two sections of the exhaust manifolds. The same procedure can also be used for the removal of the remaining sections of the exhaust manifolds.
Hot engine components can cause injury from burns. Before performing maintenance on the engine, allow the engine and the components to cool.
Illustration 1 g00616730
Apply 1U-8265 Penetrating Oil to the threads of four bolts (1). Then apply 4C-5593 Anti-Seize Compound to the threads of four bolts (1) .
Remove four bolts (1) and the locknuts.
Remove bolts (4), the washers, and the spacers that fasten exhaust manifold (2) and gasket (3) (not shown) to the cylinder head.
Illustration 2 g00610004
Illustration 3 g00616729
Remove exhaust manifold (2) and gasket (3) .
Remove two exhaust manifold sleeves (5) and exhaust seal (6) .
If necessary, apply 1U-8265 Penetrating Oil to the threads of four bolts (8). Then apply 4C-5593 Anti-Seize Compound to the threads of four bolts (8) .
Remove four bolts (8) and the locknuts.
Remove bolts (9) (not shown), the washers, and the spacers that fasten exhaust manifold (7) and the gasket to the cylinder head.Note: Repeat this procedure for the remaining sections of the exhaust manifold. If necessary, remove the turbochargers. Refer to Disassembly and Assembly, "Turbochargers - Remove" for the correct procedure.Installation Procedure
Note: Verify that all of the components of the exhaust manifold are clean and free of foreign material prior to installation.Note: The following procedure outlines the installation of two sections of the exhaust manifolds. The same procedure can also be used for the installation of the remaining sections of the exhaust manifolds.Note: Replace all of the high temperature nuts, bolts, and gaskets with new parts.
Illustration 4 g00616729
Illustration 5 g00610004
Position exhaust manifold (7) and the gasket for installation.
Apply 5P-3931 Anti-Seize Compound to the threads of bolts (9) (not shown), and the faces of the spacer. Install