HUB 1786447 - Caterpillar

Start By:
Remove the crankshaft rear seal. Refer to Disassembly and Assembly, "Crankshaft Rear Seal - Remove and Install" for the correct procedure.
Remove the engine oil pan. Refer to Disassembly and Assembly, "Engine Oil Pan - Remove and Install" for the correct procedure.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g02659276
Illustration 2 g02659298
Remove the electric starting motor. Refer to Disassembly and Assembly, "Electric Starting Motor - Remove and Install" for the correct procedure.
If necessary install the diesel particulate filter supporting bracket. Refer to Disassembly and Assembly, "Support and Mounting (CEM) - Remove and Install" for the correct procedure.
Remove bolts (3) from Position (X) from flywheel housing (1).
Install Tooling (A) into Position (X) on flywheel housing (1).
Install a suitable lifting device to the flywheel housing in order to support the flywheel housing. The weight of the flywheel housing is approximately 40 kg (88 lb).
Remove bolts (2) from flywheel housing (1).
Remove bolts (4) from flywheel housing (1).
Use the suitable lifting device in order to remove flywheel housing (1) from the cylinder block.
Illustration 3 g02882157
Illustration 4 g02661536
If necessary, remove dowels (5).
If necessary, remove bolts (7) and inspection cover (6) from flywheel housing (1). Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A - Guide Stud
M8 by 100 mm 2
B - Loctite 5970 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Ensure that the flywheel housing is clean and free from damage. If necessary, replace the flywheel housing.
Illustration 5 g02882197
Illustration 6 g02659298
Illustration 7 g02659276
Clean the rear face of the cylinder block. If necessary, install dowels (5) to the cylinder block.
If necessary, install dowels (5) to the cylinder block.
Apply a 3mm bead of Tooling (B) in Position (Y) to the cylinder block as shown in Illustration 5.
Install Tooling (A) into the cylinder block in Positions (X).
Install a suitable lifting device onto the flywheel housing. The weight of the flywheel housing is approximately 40 kg (88 lb).
Use the suitable lifting device to align flywheel housing (1) with Tooling (A). Install the flywheel housing to the cylinder block.
Install bolts (4) and bolts (2) finger tight.
Remove Tooling (A). Install bolts (3) finger tight.
Tighten bolts (4) and bolts (2) to a torque of 110 N m (81 lb ft).
Tighten bolts (3) to a torque of 35 N m (26 lb ft).
Check the alignment of flywheel housing (1) with the crankshaft. Refer to System Operation, Testing and Adjusting, "Flywheel Housing - Inspect" for more information.
Illustration 8 g02661536
If necessary, install inspection cover (6) and bolts (7) to flywheel housing (1). Tighten the bolts to a torque of 25 N m (221 lb in).
Install the electric starting motor. Refer to Disassembly and Assembly, "Electric Starting Motor - Remove and Install" for the correct procedure. End By:
Install the engine oil pan. Refer to Disassembly and Assembly, "Engine Oil Pan - Remove and Install" for the correct procedure.
Install the crankshaft rear seal. Refer to Disassembly and Assembly, "Crankshaft Rear Seal - Remove and Install" for the correct procedure.