Hydraulic truck cranes are different compared to other crane models because of the way they particularly operate. Hydraulic cranes utilize oil rather than utilizing a winch in order to wind up cables to provide the lifting force. Since oil is a kind of fluid that retains its volume, it is incompressible. Hence, this means it is one of the most ideal types of fluids for pushing pistons towards the direction the force is going to be exerted.
The hydraulic pump creates a pressure which moves the piston. This action is maneuvered by the driver using the controls in his cab. Usually, hydraulic truck cranes use a pump which has 2 gears.
The truck mounted crane can move from one location to another with little need for dismantling. The truck crane has one engine that can control both the truck and the crane.
Other Parts
Boom Telescope: The boom telescope enables the boom to retract or extend because of hydraulics.
Jib: Jibs are latticed structure booms..
Boom Swing: Boom swings have a big ball or roller attached to the carrier. It is able to swing 360 degrees in both directions. Hydraulic mechanisms control the swing and provide swings at various speeds in order to revolve 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: The load movement indicator is lights which flash in order to alert the driver that maximum weight is approaching.
Pump: The pump is the mechanism responsible for steering the outrigger.
Steel Cables: Steel reinforced cables run through the boom and the jib. They could generate up to 14,000 lbs. or 6350 kg.
Boom Elevation: The crane's boom ascends using double hydraulic cylinders that allow for lowering and raising supplies.
Rotex Gear: The rotex gear is operated by hydraulics and located underneath the cab. It enables the boom to swivel on this gear.