BRAKE GP-SERVICE & PARKING 3110516 - Caterpillar

Illustration 10 g01889993
No. 1 Upper Main Bearing
Illustration 11 g03326558
Remaining Original Upper Main Bearing
Lubricate the crankshaft journal and upper main bearing (9) with clean engine oil. Slide upper main bearing (9) into position between the crankshaft journal and the cylinder block. Ensure that the locating tab for the upper main bearing is correctly seated in the slot in the cylinder block.Note: Number one upper main bearing has an oil slot. See Illustration 10. If the engine is equipped with the original main bearing shells, all other upper shells except number one will have a slot and two oil holes. See Illustration 8.If the engine has had replacement main bearing shells, the upper main bearing shells will all have a groove and an oil slot.
Illustration 12 g01261200
Typical example
For number three main bearing, ensure that thrust washers (8) are clean