Economy drive

摘要

More and more of the wheeled loaders being sold in Europe, Japan and North America are now fitted with a new generation of low emission engines. Stage Ⅳ (Europe) and Tier 4 (US, Canada and Japan) requirements started to come into force last year. It takes time after the implementation date for these new engine machines to reach the market. Manufacturers are allowed various flexibility provisions to use up stocks of older engines as well as sell other 'old Tier' machines once the new laws have come in. But as time goes on these machines work their way through the system, and more and more Tier 4/Stage Ⅳ loaders find their way to construction sites.