Engine and hydraulic system upgrades on Caterpillar's B-Series 3 loaders allow the small-frame machines to perform as larger machines in confined spaces. A Cat C3.4 DIT diesel engine, rated at 71 net horsepower, powers the 242B3 SSL and 257B3 MTL models. A redesigned dead-engine lower valve on the loaders promotes safe operation by providing an easy-to-use means of lowering the lift arms — allowing safe exit for the operator — if the machine should run out of fuel or the engine stalls with the lift arms raised. In photo: the 257B3 multi-terrain loader.

Caterpillar, Peoria, Ill.
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