FILM-INSTRUCTION 1246899 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 387-1315 Crankshaft Bearing Driver 1 Start By:
Remove the piston and connecting rods.
Remove the flywheel.
Remove the front housing.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g02715938
Remove bolts (2), bearing case cover (1), and the gaskets.
Illustration 2 g02715301
Remove three bolts (3). Remove crankshaft (4).
Illustration 3 g02716456
Remove bolts (5). Note: Be careful not to damage the bearings. Match each lower crankshaft main bearing case and the upper main bearing case in order to ensure installation in the original location. The three crankshaft main bearing cases are marked A-B-C with side markings FLYW and HEEL to face toward the flywheel. The rear crankshaft main bearing case to be installed with the bolt holes facing toward the rear of the cylinder block.
Illustration 4 g02715310
Remove rear crankshaft main bearing case (6).
Illustration 5 g02715314
Illustration 6 g02715313
Remove lower half of crankshaft main bearing case (8), crankshaft main bearing (7), and thrust bearing (9).
Remove upper half of crankshaft main bearing case (10) and crankshaft main bearing (7).
Illustration 7 g02715307
Remove three crankshaft main bearing cases (11). Remove crankshaft main bearing (7) from the upper and lower halves of crankshaft main bearing case (11).
Illustration 8 g02715940
Illustration 9 g02715315
Remove crankshaft main bearing (12) from the front of the cylinder block with Tooling (A). Note: Check the condition of the crankshaft main bearings. Refer to the Guideline For Reusable Parts, SEBF8009, "Main and Connecting Rod Bearings" or refer to the Guideline For Reusable Parts, SEBV0544, "Engine Bearings and Crankshafts".