HARNESS AS-ENGINE 2807513 - Caterpillar

Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 4C-3601 Piston Ring Expander 1
B 1P-1861 Retaining Ring Pliers 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Verify correct assembly of the pistons and the connecting rods. Ensure that the etched numbers on the rod and the rod cap are in the correct positions. The etched number on the rod and the rod cap correspond to the cylinder in which it should be installed.
Illustration 1 g01139074
Illustration 2 g01139072Note: This engine has fractured connecting rods. Fractured connecting rods must be handled with care. Use a soft jawed vise to hold the connecting rod cap bolts.
Check the clearance between the ends of piston rings (5). Refer to Specifications, "Piston and Rings".
Install the oil control piston ring with Tooling (A). The ends of the spring should be rotated 180 degrees from the ring end gap.
Install the intermediate piston ring with the side marked "UP-2" toward the top of the piston. Use Tooling (A) to install the ring.
Install the top piston ring with the side marked "UP-1" toward the top of the piston. Use Tooling (A) to install the ring.
Inspect bearings (7) in piston crown (6). The piston crown must be replaced if the piston crown is worn or damaged.
Position the piston skirt (2) and piston crown (6) on connecting rod (1). Apply clean engine oil to pin (4) and install pin (4). Use Tooling (B) to install retaining rings (3). Ensure that retaining rings (3) are in the grooves of piston skirt (2). End By:
Install the pistons and connecting rods. Refer to Disassembly and Assembly, "Piston and Connecting Rods - Install".