COVER 3J7479 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     2P-5518     Main Bearing Tool     1    
B     9S-9082     Engine Turning Tool     1    Start By:
Remove the engine oil pump. Refer to Disassembly and Assembly, "Engine Oil Pump - Remove".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Check the main bearing caps for identification of the location and check the direction of the main bearing caps in relation to the cylinder block. The main bearing caps must be installed in the same location and the same direction prior to removal.
Illustration 1 g00503084
Remove main bearing caps (1) .Note: Remove No. 1 and No. 7 main bearing caps (1) after No. 2 through No. 6 main bearing caps have been installed.
Illustration 2 g01096652
Remove thrust plates (2) from the center main bearing.Note: Thrust plates (2) will only be located on the center main bearing.
Illustration 3 g01096656
Remove the lower half of main bearing (3) from main bearing cap (1) .
Illustration 4 g01096660
Note: If the crankshaft is turned in the wrong direction, the tab on the bearing will be pushed between the crankshaft and the bearing area of the cylinder block. This can result in damage to the cylinder block and/or the crankshaft. Turn the crankshaft so that the bearing tab is rotated out of the cylinder block.
Remove the upper half of the main bearing by installing Tooling (A) in oil hole (4) in the crankshaft. Use Tooling (B) in order to turn the crankshaft in the direction which will remove the upper half of the main bearing.