GEAR AS-OIL PUMP 9N4161 - Caterpillar

Removal Procedure
Start By:
Remove the exhaust elbows. Refer to Disassembly and Assembly, "Exhaust Elbow - Remove and Install".
Remove the air inlet manifold. Refer to Disassembly and Assembly, "Air Inlet Manifold - Remove and Install".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01244926
Remove bolts (1), manifold (2), and sleeves (3), if necessary.
Attach a suitable lifting device to exhaust manifold (4). The weight of exhaust manifold (4) is approximately 75 kg (165 lb). Remove bolts (5) that attach exhaust manifold (4) to the cylinder heads.
Remove exhaust manifold (4) and exhaust manifold gaskets (6).
Illustration 2 g02294595
Remove clamps (9). Remove bellows assemblies (7) and manifolds (8). Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 5P-3931 Anti-Seize Compound -
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 3 g02294595
Apply Tooling (A) to the threads, the bearing surfaces, and the inner diameters of clamps (9). Install bellows assemblies (7), clamps (9), and manifolds (8). Tighten clamps (9) to a torque of 25 6 N m (220 55 lb in).
Illustration 4 g01244926
Attach a suitable lifting device to exhaust manifold (4). The weight of exhaust manifold (4) is approximately 75 kg (165 lb).
Install new exhaust manifold gaskets (6) and position exhaust manifold (4) onto the cylinder head. Apply Tooling (A) to the threads of bolts (5). Install bolts (5) and tighten to a torque of 50 5 N m (37 4 lb ft). Tighten bolts (5) again to a torque of 50 5 N m (37 4 lb ft).
Install sleeves (3) and manifold (2), if necessary. Apply Tooling (A) to the threads of bolts (1). Install bolts (1) and tighten to a torque of 55 5 N m (41 4 lb ft). End By:
Install the air inlet manifold. Refer to Disassembly and Assembly, "Air Inlet Manifold - Remove and Install".
Install the exhaust elbows. Refer to Disassembly and Assembly, "Exhaust Elbow - Remove and Install".