PIN-COTTER 3B4609 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 9S-9082 Engine Turning Tool 1
B 9U-5023 Main Bearing Wrench 1
C 2P-5517 Main Bearing Tool 1
D 236-6688 Main Bearing Cap Tool 2 Start By:
Remove the oil pump.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01125228
Remove side cover (1) from the cylinder block.
Use Tooling (A) to rotate the counterweight on the crankshaft to the top of the cylinder block.
Illustration 2 g01125196
Use Tooling (B) and loosen bolts (3) for the main bearing cap. Remove the outer bolts from main bearing cap (2).
Illustration 3 g01125192
Install Tooling (D) until Tooling (D) bottoms out in the block. Adjust the nuts on Tooling (D) until the nuts make contact with main bearing cap (2). Remove bolts (3) from the main bearing cap.
Illustration 4 g01125205
Loosen the nuts on Tooling (D) evenly in order to lower main bearing cap (2). Lower main bearing cap (2) to the end of the bolt on Tooling (D) in order to gain access to the main bearings.
Illustration 5 g01125209
Use Tooling (A) and rotate the crankshaft until the oil hole of the crankshaft journal is just below the side of the main bearing without the tab. Install Tooling (C) and remove the upper bearing.
The following step is for removing the thrust plates from the cylinder block. Remove the thrust plates on each side of the center main bearing. It may be necessary to move the crankshaft with a prybar in order to remove the thrust bearing from the cylinder block.
Illustration 6 g01125211
Remove lower main bearing (4) from main bearing cap (2). Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A 9S-9082 Engine Turning Tool 1
B 9U-5023 Main Bearing Wrench 1
C 2P-5517 Main Bearing Tool 1
D 236-6688 Main Bearing Cap Tool 2
E 9S-7351 Torque Wrench 1
F 8T-5096 Dial Indicator Gp 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: Install the main bearings dry when clearance checks are performed. Refer to Disassembly and Assembly, "Bearing Clearance - Check". Apply clean engine oil on the main bearings for final assembly.
Illustration 7 g01125211
Install lower main bearing (4) in main bearing cap (2). Ensure that the main bearing is installed so that the bearing tab fits into the notch in the main bearing cap. Note: The main bearing caps must be installed with the word "FRONT" and the part number toward the front of the engine. Each main bearing cap has a number on the bottom surface and each main bearing must be installed in the corresponding position in the cylinder block.
Install the upper main bearing with the side without the tab into the side of the cylinder block with the tab. Use your hand and roll the upper main bearing into position. Use Tooling (A) and rotate the crankshaft. Rotate the crankshaft until the oil hole is positioned in front of the side of the upper main bearing with the tab.
Illustration