This video is a job we did to repair & replace a broken trunnion bearing end on a Push Arm for a Caterpillar D8T Bulldozer. The trunnion end has a crack all the way through it and we need to replace it. This shows the step by step process to remove the cracked trunnion end using air arc gouging and prep the side arm before fitting and mig welding on the new trunnion end.

In this video we are using:
- Lincoln Electric DC-400 Welder
- WIA 500i Weldmatic welder

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Our channel is all about showing you real life machining work from our workshop on the Gold Coast Australia. We specialize in manual machining, hydraulic repairs and heavy fabrication for the earth moving, mining and civil construction industries. So if you're a machinist that wants to see some big gear in action be sure to subscribe to our channel right now. We upload new videos every week that show lathe machining, milling, welding and all the good stuff that comes from a machining workshop. If that sounds like something that you would enjoy seeing, then make sure to join us by subscribing!

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