How do you adjust valves on a cat c10 engine?

To adjust the valves on a CAT C10 engine, first ensure the engine is cool and then remove the valve cover. You’ll need to rotate the engine to align the timing marks, bringing the piston of the cylinder you’re adjusting to the top dead center (TDC) on the compression stroke. Using a feeler gauge, measure the clearance between the rocker arm and the valve stem, and adjust the rocker arm nut as necessary to achieve the specified clearance. Repeat this process for each cylinder, following the manufacturer's specifications for valve clearance.