COUPLING 5L5344 - 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 the 3512C and 3512E exhaust manifold is approximately 55 kg (121 lb). The weight of the 3516C exhaust manifold is approximately 85 kg (187 lb). Remove bolts (5) that attach exhaust manifold (4) to the cylinder heads.
Remove exhaust manifold (4) and exhaust manifold gaskets (6).
Illustration 2 g01245020
Remove bolts (9). Remove sleeves (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 g01245020
Install sleeves (7) and manifolds (8). Apply Tooling (A) to the threads of bolts (9) and install bolts (9). Tighten bolts (9) in a diagonal manner to a torque of 55 5 N m (41 4 lb ft).
Illustration 4 g01244926
Attach a suitable lifting device to exhaust manifold (4). The weight of the 3512C and 3512E exhaust manifold is approximately 55 kg (121 lb). The weight of the 3516C exhaust manifold is approximately 85 kg (187 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).
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".