CONTROL GP 10R5607 - 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. See illustration B18488P1 on Page 90. 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 four orifices (1) from the cylinder block.2. Use tool (A) to install the orifices in main bearing bosses No. 2 and 4 until they are against the counterbore. Be sure the orifices are open after they are installed.END BY: a. install crankshaft and gear