SEAL-O-RING 3409315 - Caterpillar

Removal Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     8S-2269     Ridge Reamer     1    Start By:
Remove the spacer plate. Refer to Disassembly and Assembly, "Spacer Plate - Remove and Install".
Remove the engine oil pan plate. Refer to Disassembly and Assembly, "Engine Oil Pan Plate - Remove and Install".
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.
Use Tool (A) to remove the liner wear ridge from the inner surface of the cylinder liner.
Illustration 1 g00483120
Turn the crankshaft until two of the pistons are at the bottom center. Remove connecting rod nuts (1) from the connecting rod. Remove connecting rod cap (2). Put identification marks on the connecting rod and connecting rod cap. The identification marks must be on the bearing tab side for installation purposes.
Illustration 2 g00483180
Illustration 3 g00496980
After connecting rod cap (2) is removed, push connecting rod (3) away from the crankshaft until the piston rings are out of the cylinder liners. Remove piston (4) from the cylinder block.
Ensure that the connecting rod and the connecting rod cap are kept as a set. Put an identification mark on each piston in order to locate the piston in the cylinder block.
Repeat Steps 1 through 4 for the remaining piston and connecting rods.