Now, battery-stored power can power the hydraulic power plant, or it can directly provide power to the individual tool. Next, came the first generation of electric motors - with current supplied by apparatus-mounted or portable generators. While the number and types of cutters, spreaders, rams, etc., have increased over that time, there also have been big advances in how the tools are powered.įirst, there came quieter and more powerful four-cycle engines. ![]() ![]() When other risk factors are added, such as a structure or natural hazard, vehicle extrication becomes more complicated here's how to handle those situations
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