Cat MD6240 Bucyrus Drill Rig High Pressure L and M Mesabi Oil Cooler

Here's some pics of a high pressure oil cooler we're pressure testing in our test tank. This is an L&M Mesabi style oil cooler which we rebuilt for a Caterpillar Bucyrus MD6240 drill rig. The specs call for a cycling pressure test of 300psi to 500psi. Motor Mission Machine & Radiator 5435 Desert Point Dr. [...]