Abstract
Power take-off systems are necessary for most of today's trucks supplying the power to operate various truck-mounted equipment on tipping gear, garbage packers, fuel tankers, bulk cement tankers, refrigeration trucks, and many more applications. PTOs are gear-driven units that fit to, and obtain their power from, the truck gearbox and transmit the power through a drive shaft to the unit being driven, such as a pump or compressor. Other special PTOs are available which drive off the engine and main driveline. Many types of PTOs are described which cater for a wide range of horsepowers and speeds to suit truck users' needs; they are controlled from the driving cab by direct rods or remotely by flexible cables or air pressure.
Giving the truck user the best and most economical PTO system is dependent upon the PTO transmission and truck manufacturer ensuring that a suitable PTO is available and that the transmission PTO mounting is available to accept the PTO and its drive. More automation on future trucks will make co-operation between these manufacturers increasingly essential, to maintain the continuing expansion of the trucking industry.
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