SEAL 6J4569 - Caterpillar

REMOVE AND INSTALL CONNECTING ROD BEARINGS
start by:a) remove piston cooling jets1. Use tool (A) and turn the engine flywheel to move the connecting rod cap bolts into a position for removal.2. Remove bolts (1) and remove bearing caps (2) from the crankshaft and connecting rod. Remove the lower half of the bearings from caps (2).3. Push the connecting rods away from the crankshaft and remove the upper halves of the bearings from the rods. Install rod bearings dry when the clearance checks are made. Put clean engine oil on the rod bearings for final assembly.4. Clean the surfaces where the bearing halves fit. Install bearing halves (3) in the rods and caps (2). Put 334-0519 Grease on the bolt threads and contact surfaces of the bolts and caps.5. Make a check of the bearing clearance with Plastigage. Put caps (2) in position on the connecting rods and make sure the number on the side of the cap is next to and respective with the number on the side of the connecting rod. Tighten the bolts in the number sequence shown as follows:
CAUTION Do not use an impact wrench for the torque tightening sequence.
Bolts (6) and (7) are on the end of the rod cap opposite the end that has the location pin for correct installation.a) Tighten bolts (4) and (5) to a torque of 90 5 N m (65 4 lb ft).b) Tighten bolts (6) and (7) to a torque of 90 5 N m (65 4 lb ft).c) Retighten bolts (4) and (5) to a torque of 90 5 N m (65 4 lb ft).d) Retighten bolts (6) and (7) to a torque of 90 5 N m (65 4 lb ft).e) Tighten all the bolts an additional 90 5 degrees.6. Remove the rod cap and measure the Plastigage. The rod bearing clearance must be 0.107 to 0.218 mm (.0042 to .0086 in).7. Put clean engine oil on both halves of the rod bearings. Put caps (2) in position. Repeat Steps 5a through 5e for the correct tightening procedure.end by:a) install piston cooling jets