Hydraulic truck cranes are different from other crane models because of the way they specifically operate. Hydraulic cranes utilize oil instead as opposed to using a winch in order to wind up cables to provide the lifting force. Because oil is a type of fluid which retains its volume, it is incompressible. Therefore, this means it is among the most ideal kinds of fluids for pushing pistons towards the direction the force is going to be exerted.
The pressure created by the hydraulic pump moves the piston. This action is maneuvered by the driver using the controls inside his cab. Typically, hydraulic truck cranes utilize a pump that has 2 gears.
The truck mounted crane can move from one site to another with little need for dismantling. The truck crane has one engine that controls both the crane and the truck.
Other Parts
Boom Telescope: The boom telescope allows the boom to extend or retract thanks to hydraulics.
Jib: The jib is a latticed structure which extends from the boom.
Boom Swing: The boom swing is a big roller or ball that is connected to the carrier. It is able to swing 360 degrees in both directions. Hydraulic mechanisms provide swings at varying speeds and control the swing in order to rotate the turntable gearbox.
Outrigger: The outrigger is a unit that helps the crane maintain its balance by using hydraulics to lift the truck.
Load Movement Indicator: In order to alert the driver that maximum weight is approaching, the load movement indicator's lights flash.
Pump: The pump's purpose is to steer the outrigger.
Steel Cables: The steel cables are reinforced and run through the jib and the boom. They could generate up to 14,000 lbs. or 6350 kg.
Boom Elevation: The boom of the crane ascends using double hydraulic cylinders that allow for raising and lowering supplies.
Rotex Gear: The rotex gear is operated by hydraulics and located beneath the cab. It enables the boom to swivel on this gear.