SPRING 4B8312 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A - Guide Studs
M10 by 100 mm 2 Start By:
Remove the flywheel. Refer to Disassembly and Assembly, "Flywheel - Remove" for the correct procedure.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g02227473
Typical example
Illustration 2 g02227474
Typical example
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 onto 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) and remaining bolts (3) from flywheel housing (1).
Use a suitable lifting device in order to remove flywheel housing (1) from the cylinder block.
Illustration 3 g01983533
Typical example
Remove dust seal (5).
If necessary, remove dowels (4) from the cylinder block. Installation Procedure (Standard Housing)
Table 2
Required Tools
Tool Part Number Part Description Qty
A - Guide Studs
M10 by 100 mm 2
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 4 g01983535
Typical example
Inspect crankshaft rear seal (6) for leaks. If there are any oil leaks, replace the crankshaft rear seal. Refer to Disassembly and Assembly, "Crankshaft Rear Seal - Remove" and refer to Disassembly and Assembly, "Crankshaft Rear Seal - Install" for the correct procedure.
Clean the rear face of the cylinder block. If necessary, install dowels (4) to the cylinder block.
Install Tooling (A) to the cylinder block.
Install dust seal (5).
Illustration 5 g02227475
Typical example
Install a suitable lifting device onto the flywheel housing. The weight of the flywheel housing is approximately 40 kg (88 lb).
Use the lifting device to align flywheel housing (1) with Tooling (A). Install the flywheel housing to the cylinder block.
Install bolts (2) and bolts (3).
Remove Tooling (A). Install remaining bolts (3).
Illustration 6 g01984554
Identification of the bolt Grade.
When 8.8 Graded bolts are installed, follow Step 10.a through Step 10.b.
Tighten bolts (3) to a torque of 63 N m (46 lb ft).
Tighten bolts (2) to a torque of 78 N m (58 lb ft).
When 10.9 Graded bolts are installed follow Step 11.a through Step 11.b.
Tighten bolts (3) to a torque of 115 N m (85 lb ft).
Tighten bolts (2) to a torque of 190 N m (140 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. End By:
Install the flywheel. Refer to Disassembly and Assembly, "Flywheel - Install" for the correct procedure.