Hydraulic truck cranes are different compared to other crane types due to the way they particularly 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 kind of fluid that 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 hydraulic pump creates a pressure that moves the piston. This action is maneuvered by the operator using the controls inside his cab. Normally, hydraulic truck cranes use a 2 gear pump.
As the actual crane itself is mounted on a truck, it can travel many distances from site to site and there is little dismantling involved. The truck crane has a single engine which can control both the truck and the crane.
Other Parts
Boom Telescope: The boom telescope allows the boom to retract or extend thanks to hydraulics.
Jib: Jibs are latticed structure booms..
Boom Swing: Boom swings have a large ball or roller connected to the carrier. It could swing 360 degrees in both directions. Hydraulic devices control the swing and provide swings at varying speeds in order to revolve the turntable gearbox.
Outrigger: The outrigger is a unit that helps the crane maintain its balance by utilizing hydraulics to lift the truck.
Load Movement Indicator: In order to warn the driver that maximum weight is approaching, the load movement indicator's lights flash.
Pump: The pump is the device responsible for steering the outrigger.
Steel Cables: The steel cables are reinforced and run through the jib and the boom. They could generate up to 6350 kg or 14,000 lbs.
Boom Elevation: The boom of the crane ascends using double hydraulic cylinders which allow for raising and lowering materials.
Rotex Gear: The rotex gear is operated by hydraulics and located underneath the cab. It allows the boom to swivel on this gear.