Right machine wrong timing
Image: From a Caterpillar promotional spec sheet dated 1979, the businesslike lines of the 639D elevating scraper are very apparent. To the best of my...
Tag : Caterpillar 3306T
The Caterpillar 627
The model 627 twin powered motor scraper marked a paradigm shift for Caterpillar in terms of design and sent a clear message to Terex that...
The Caterpillar J621 elevating scraper
A logical development of the Caterpillar J619, Caterpillar’s J621 elevating scraper was introduced in 1965. By Richard Campbell The Caterpillar J621 was a pairing of...