VALVE GP-TRANSMISSION CONTROL 6I9482 - Caterpillar

START BY:a. remove crankshaft and gear The piston cooling orifices are installed in the No. 2 and 4 main bearing bosses in the cylinder block. A replacement is necessary only if they are damaged. Normally it will only be necessary to be sure the orifices are clean. 1. Use a soft punch to remove the orifices from the cylinder block.2. Use tool (A) to install piston cooling orifices (1) (small end first) in the main bearing bosses No. 2 and 4. Install the orifices in the main bearing bosses until they are against the counterbore.3. Make sure that the passage is open after the piston cooling orifice is installed.END BY:a. install crankshaft and gear