Making the Piston & Reassembly! | Hitachi ZX470 Cylinder Rebuild | Part 3

The Hitachi ZX470 Cylinder rebuild is complete! This video is Part 3 of rebuilding a stick (dipper arm) cylinder off a Hitachi ZX470 excavator. In this video we show the complete process of making a new hydraulic cylinder piston including modifying with a silicon bronze weld layer before reassembling the cylinder. We also show pressing in the new bushings with our 150-tonne hydraulic press, installing the new seal kit and painting the rebuilt cylinder. We hope you enjoyed watching the videos on how we complete a hydraulic cylinder rebuild!

MISSED PART 1?! Watch it here:    • It's STUCK! Can We Get This BIG Cylin...  
MISSED PART 2?! Watch it here:    • Making the NEW Cylinder Barrel! | Hit...  

In this video we are using:
Hafco TM-26120G Centre Lathe
MetalMaster HPM-150T Hydraulic press
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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