RING 7J9247 - Caterpillar

Assembly Procedure
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     1U-6683     Ring Expander     1    
B     1P-1857     Retaining Ring Pliers     1    
C     5P-8639     Hydraulic Press     1    
5P-8653 Adapter     1    
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
The connecting rod controls the piston height above the cylinder block. The connecting rod and the piston must be assembled and installed in the correct cylinder. Refer to Testing and Adjusting, "Connecting Rod - Inspect" for the correct procedure on checking the length of the connecting rod.
Illustration 1 g01165125
Use Tooling (C) to install piston pin bushing (6) into connecting rod (7) .Note: Ensure that the oil hole in piston pin bushing (6) is aligned with the oil hole at the top of connecting rod (7) .
Machine piston pin bushing (6) in order to obtain a clearance of 0.0330 0.0102 mm (0.00130 0.00040 inch) between piston pin (9) and piston pin bushing (6) .
Illustration 2 g00974748
The identification Number (Y) that is on the top of the piston must be installed with the corresponding connecting rod. Position the piston and the connecting rod so that the identification numbers are located on the same side. The forged Mark (X) on the connecting rod must be installed on the same side as the Recess (Z) in the boss for the piston pin. Install piston pin (9) into piston (8) and through connecting rod (7) .Note: If piston pin (9) cannot be installed by hand, raise the temperature of piston (8). Do Not use a torch to heat piston (8) .
Use Tooling (B) in order to install retaining rings (10) that hold piston pin (9) in position.
Use Tooling (A) in order to install piston rings (3), (4), and (5) on piston (8) with the following steps.
Install the oil control ring (5) in the groove that is lowest on the piston. The latch pin that is on oil control ring (5) must be inside the ends of the spring.Note: Ensure that the latch pin that is on oil control ring (5) is 180 degrees from the oil control ring gap.
Install the intermediate compression ring (4) with the tapered face into the second groove on the piston. The stamp "TOP" must be toward the top of the piston.Note: Intermediate compression rings that are new have a green mark which must be on the left of the piston ring gap when the piston ring is installed.
Install the top compression ring (3) into the top groove on the piston. The stamp "TOP" must be toward the top of the piston.Note: Top compression rings that are new have a red mark which must be on the left of the ring gap when the ring is installed.
Position the piston ring gaps at 120 degrees away from each other.
Illustration 3 g01165124
Install upper connecting rod bearing (2) in the connecting rod. Install lower connecting