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LeTourneau Off-Highway Trucks

Birth of the Articulated Dump Truck

Contrafed PUblishingJanuary 23, 2017September 23, 2021
by Contrafed PUblishingJanuary 23, 2017September 23, 2021
Developed to a greater potential during the late 1960s with the advent of all-wheel drive, the articulated dump track has actually been around for a...
‘Rock-Buggy’all-wheel drive ADTsAllis-ChalmersArticulated Dump Truckarticulated rear dumpersAthey Products CorpBoomarooC Tournarockerscable operatedClark-MichiganCummins engineD Tournarockersdump bodiesEMD ModelsEuclidforced ejectionGM 6-71GM 8-71GoodmansLeTourneau AustraliaLeTourneau’s Rydalmere plantModel A Tournapullmodel C Tournapullmodular machinemultiple disc brakesNylintrear attachmentsRG Tourneauslide out ejectionsliding gear transmissionTerex S-24 tractor unitsthe Tourntailerthe trademark EuclidTournarockersWabcoWestinghouse Air Brake CoWooldridge/Curtiss-WrightYuba Movall CoYuba Movall Corp

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Classic machine photos from our archives- this pic Classic machine photos from our archives- this pic was published in March 2012's mag, as part of a profile of the Allis-Chalmers HD-20 tractor.⁣
⁣
Caption: This preserved Allis-Chalmers HD-20 was spotted at the 2008 Historical Construction Machinery show in the USA. It is fitted with a ‘hard nose’ and Baker hydraulic S blade.⁣
⁣
#allischalmers #hd20 #classictractors #classiccrawlers #classicmachines #contractormagazine
Classic machine photos from our archives- this pic Classic machine photos from our archives- this pic was published in March 2012's mag, as part of a profile of the Allis-Chalmers HD-20 tractor.⁣
⁣
Caption: Photographed in 1979 at the Maori Farm opencast coalmine in Huntly, this HD-20 has obviously had a very hard life. It has a scraper push plate and has undergone some modifications to the air induction system as no factory delivered HD-20 ever used an aircleaner set up like this. Sad to say it has almost certainly gone to the scrapper.⁣
⁣
#allischalmers #hd20 #classictractors #classiccrawlers #classicmachines #contractormagazine
Classic machine photos from our archives- this pic Classic machine photos from our archives- this pic was published in March 2012's mag, as part of a profile of the Allis-Chalmers HD-20 tractor.⁣
⁣
Caption: Although of marginal quality, this shot shows an HD-20 belonging to FJ Bognuda working on top of Moa Point, Wellington, 1955, during the construction of the airport where a good deal of this hill was removed and used as fill for the main runway. It is towing a LeTourneau K30 ripper.⁣
⁣
#allischalmers #hd20 #classictractors #classiccrawlers #classicmachines #contractormagazine
Classic machine photos from our archives- this pic Classic machine photos from our archives- this pic was published in March 2012's mag, as part of a profile of the Allis-Chalmers HD-20 tractor.⁣
⁣
Caption: Three HD20s pulling Garwood 624 scrapers excavate a roadbed near Bowling Green, Kentucky, 1953. The lead two units are equipped with a chassis mounted push plate for push loading scrapers. A great many HD20s were delivered with this attachment. The sound of all those GM 6-110s at full throttle must have been fantastic!⁣
⁣
#allischalmers #hd20 #classictractors #classiccrawlers #classicmachines #contractormagazine
Classic machine photos from our archives- this pic Classic machine photos from our archives- this pic was published in March 2012's mag, as part of a profile of the Allis-Chalmers HD-20 tractor.⁣
⁣
Caption: An HD-20 with chassis mounted push plate gives a helping hand to a LaPlant-Choate TS300 motor scraper. Contractors liked the power and ease of operation of these machines, which was carried over into the HD-21 series.⁣
⁣
#allischalmers #laplantchoate #hd20 #classictractors #classiccrawlers #classicmachines #contractormagazine
Classic machine photos from our archives- this pic Classic machine photos from our archives- this pic was published in March 2012's mag, as part of a profile of the Allis-Chalmers HD-20 tractor.⁣
⁣
Caption: A factory-fresh Allis-Chalmers HD-20 poses for the camera. This machine is yet to be fitted with any attachments. Headlights behind the front grille were an Allis-Chalmers feature that was carried through to the early 1970s.⁣
⁣
#allischalmers #hd20 #classictractors #classiccrawlers #classicmachines #contractormagazine
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