How do you remove oil cooler for Isuzu KB280?

To remove the oil cooler from an Isuzu KB280, first ensure the engine is cool and disconnect the negative battery terminal. Drain the engine oil and coolant to avoid spills. Next, remove any hoses connected to the oil cooler, then unscrew the mounting bolts securing it to the engine block. Finally, carefully detach the oil cooler and clean the surfaces before installing a new one if necessary.