RETAINER 3K0556 - Caterpillar

Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 9S-9082 Engine Turning Tool 1
178-8615 Engine Turning Tool(1) 1
B - Plastic Cap 2
C 173-5528 Piston Ring Compressor 1
(1) Can be used to turn crankshaft from the front of the engine.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
The joint between the connecting rod and the connecting rod cap is produced by fracturing. The connecting rod assembly must be handled with care in order to avoid damage to the mating surfaces. The connecting rod assembly must be replaced if any damage occurs to the mating surfaces. New connecting rod assemblies come with the connecting rod caps bolted on the connecting rod.Use only a soft jawed vise to hold the connecting rod assembly when removing the connecting rod cap bolts. Use only a soft faced hammer to tap the connecting rod cap when separating the connecting rod cap from the connecting rod.Failure to use a soft jawed vise and a soft faced hammer may result in damage to the connecting rod assembly.
Note: Refer to Reuse and Salvage Guidelines, "Salvage Procedures for Connecting Rods".
Apply clean engine oil to the pistons, the piston rings, and the cylinder bore.
Illustration 1 g00828435
Typical Example
Place Tooling (B) over both fractured ends of the connecting rod.
Position the piston rings so that the end gaps are located 120 degrees from each other. Use Tooling (C) to compress the piston rings.
Illustration 2 g01139029
With the crankshaft throw at the bottom center, install the piston and connecting rod (3) in the engine. Ensure that the proper piston and connecting rod are in the corresponding cylinder with the identification mark on the connecting rod on the side that is toward the camshaft.Note: The forged part number on the connecting rod must be installed toward the flywheel end of the engine.
Line up the piston and connecting rod (3) with the crankshaft. Use a soft faced hammer and tap the piston into the cylinder bore until Tooling (C) comes off the piston.
Before connecting rod (3) comes in contact with the crankshaft, remove Tooling (B) and install the upper half of connecting rod bearing (4). Ensure that the bearing tab engages with the slot in connecting rod (3).
Apply clean engine oil to the surface of the upper half of connecting rod bearing (4). Use a soft faced hammer to tap the piston into the cylinder bore while you guide connecting rod (3) onto the crankshaft.
Place the lower half of connecting rod bearing (5) in corresponding connecting rod cap (1). Ensure that the bearing tab engages with the groove in connecting rod cap (1).
Apply clean engine oil to the surface of the lower half of connecting rod bearing (5). Install connecting rod cap (1) on connecting rod (3). Ensure that the number on connecting rod cap (1) matches the number on connecting rod (3). Ensure that the numbers are on the same side.
Install new connecting rod cap bolts (2). Tighten connecting rod cap bolts (2) to a torque of