SOFTWARE GP-MACHINE 4353548 - Caterpillar

Specifications
Table 1
Specifications for the Connecting Rod    
Grade Letter    Color Code    Length Of The Connecting Rod (CRL)    
B     Blue    
161.107 to 161.140 mm (6.3428 to 6.3441 inch)    Introduction
Note: If the crankshaft or the cylinder block are replaced, the piston height for all cylinders must be measured.
New piston pin bearings must be bored after installation in the original connecting rods. Refer to "Piston Pin Bearings".Piston Pin Bearings
Note: This procedure requires personnel with the correct training and the use of specialized equipment for machining.Note: When the piston pin is installed, always install new retaining rings on each end of the piston pin. If the piston pin cannot be removed by hand, heat the piston to a temperature of 45° 5 °C (113° 9 °F) in order to aid the removal of the piston pin. Heating the piston to this temperature may also aid the installation of the piston pin. If the piston pin bearing requires replacement but the original connecting rod is not replaced, the following procedures must be performed:
Remove the piston pin bearing from the connecting rod. Install a new bearing in the connecting rod. The new bearing is partially finished. The new bearing must be bored off-center to the correct diameter. This off-center position is determined by the length of the connecting rod. Refer to table 1. The correct diameter of the bore in the piston pin bearing is given in Specifications, "Connecting Rod".Surface finish of the bored hole in the piston pin bearing ... Ra 0.8 micrometers
Machine the ends of the piston pin bearing to the correct length. Remove any sharp edges. Refer to Specifications, "Connecting Rod".Table 1 references the following information: Grade of letter of the connecting rod, the color code of the connecting rod and the length of the connecting rod.