We’re finishing the build on the custom drive coupling that connects our new
Cummins 6BT engine to the hydraulic pump on the Franna crane!
The job continues on the milling machine where we will drill, tap and counterbore all the mounting holes on both adapter plates using the PCD bolt hole function on the digital readout for perfect accuracy. Once everything is machined the holes get deburred by hand before pressing in the splined sleeve that will mate to the hydraulic pump shaft. To stop the sleeve from rotating we’re going to TIG weld it in place but that doesn’t go smoothly when a crack forms across the weld surface. It takes a few careful passes to sort out before the weld is right. Once that’s done, we’ll test assemble the full 3-piece coupling before bolting it up to finally join the engine and hydraulic pump together. That completes the engine upgrades while it’s out of the crane, but once it’s back in the rear frame there’ll be plenty more to do — so stay tuned!
MISSED PART 1 of the Drive Coupling Build? Watch here:
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We're a down-to-earth real life machining and fabrication workshop in Australia. We specialise in helping business in mining and earthmoving to keep their machines running smoothly. We love working on broken parts and the bigger the better! We upload new videos every week showcasing machining, welding, line boring, honing and all the other awesome stuff that goes down in our workshop. Learn how we tackle different projects and see the satisfaction of creating something useful. Subscribe to stay updated on our latest jobs and projects! Follow us on Patreon for even more content and behind-the-scenes glimpses or find us on Tiktok, Facebook and Instagram for a chance to connect with us.
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