Due to the way they particularly operate, hydraulic truck cranes are different from other crane types. Rather than using a winch in order to wind up cables to provide the lifting force, hydraulic cranes use oil instead. Because oil is a type of fluid that retains its volume, it is incompressible. Therefore, this means it is among 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 that moves the piston. This particular action is maneuvered by the driver from the controls within his cab. Typically, hydraulic truck cranes utilize a 2 gear pump.
The truck mounted crane could move from one location to another with little need for dismantling. The truck crane has a single engine that controls both the truck and the crane.
Other Parts
Boom Telescope: The boom telescope enables the boom to extend or retract thanks to hydraulics.
Jib: Jibs are latticed structure booms..
Boom Swing: Boom swings have a large ball or roller connected 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 which helps the crane maintain its balance by utilizing hydraulics to lift the truck.
Load Movement Indicator: In order to alert the operator 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 14,000 lbs. or 6350 kg.
Boom Elevation: The boom of the crane ascends with the use of double hydraulic cylinders which could be lowered and raised.
Rotex Gear: The rotex gear is operated by hydraulics and situated underneath the cab. It allows the boom to swivel on this gear.