Line boring and Bore welding Caterpillar D10 Dozer push arm | Sir Meccanica WS2

In this video we are line boring and bore welding to repair a Caterpillar D10 Dozer push arm. The bushings are oversized so we are welding them up and boring them out to bring them back to size for standard bushings. We are using our Sir Meccanica WS2 portable in-line boring and bore welding machine. First is setting up and tack welding on the bearing mounts for positioning the line boring machine. We need to line bore out the eye material before bore welding to build up new material and then boring out to spec. The job is completed by cleaning up the eye surfaces and cryo freeze shrink fitting the new bushings using liquid nitrogen.

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