The 1950s Caterpillar film This New Series H D8 touts the new 225-horse power tractor (00:37). The D8 has been the yardstick of big tractors for decades, and more than 1,000 improvements have been made since the first D8 was built. For the new D8, engineers design lifetime lubricated tracks and test the product on proving grounds; the H Series D8 is then tested vigorously on Caterpillar’s proving grounds (02:25). The film discusses new features and improvements to design with the new Series H D8, including size, undercarriage, drive and speeds, and other specifications. Operators enjoy the comfortable deck (04:20) with increased visibility on the revamped tractor. The film gives an overview of operations from the deck (04:50), then shows a D8 undertaking a land-clearing job in Central Florida (05:34) and another D8 working a stripping operation at an Arizona mine (07:00). The new D8 is easy to maintain and features some other notable features, including the double reduction final drive gears, a new direct drive transmission, and the advanced lube system.

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