Due to the way they particularly work, hydraulic truck cranes are different compared to other crane types. Rather than utilizing a winch in order to wind up cables to provide the lifting force, hydraulic cranes utilize oil instead. Since oil is a type of fluid that retains its volume, it is incompressible. Therefore, this means it is amongst the most ideal kinds of fluids for pushing pistons towards the direction the force is going to be exerted.
The pressure generated by the hydraulic pump moves the piston. This particular action is maneuvered by the operator utilizing the controls inside his cab. Normally, hydraulic truck cranes use a 2 gear pump.
The truck mounted crane is able to move from one location to another with little need for dismantling. The truck crane has one engine that controls both the truck and the crane.
Other Parts
Boom Telescope: The boom telescope allows the boom to retract or extend because of hydraulics.
Jib: The jib is a latticed structure that extends from the boom.
Boom Swing: Boom swings have a big 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 rotate the turntable gearbox.
Outrigger: The outrigger is a unit which helps the crane maintain its balance by using hydraulics to lift the truck.
Load Movement Indicator: In order to warn the operator that maximum weight is approaching, the load movement indicator's lights flash.
Pump: The pump is the mechanism responsible for steering the outrigger.
Steel Cables: Steel reinforced cables run through the boom and the jib. They are able to generate up to 14,000 lbs. or 6350 kg.
Boom Elevation: The crane's boom ascends with the use of double hydraulic cylinders that can be lowered and raised.
Rotex Gear: The rotex gear is operated by hydraulics and located beneath the cab. It enables the boom to swivel on this gear.