Due to the way they specifically work, hydraulic truck cranes are different from other crane models. Rather than utilizing a winch in order to wind up cables to provide the lifting force, hydraulic cranes use oil instead. Because oil is a fluid that retains its volume, it is incompressible. Hence, this means it is amongst the most ideal types 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 action is maneuvered by the driver using the controls inside his cab. Normally, hydraulic truck cranes make use of a pump which has 2 gears.
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 can control both the crane and the truck.
Other Components
Boom Telescope: The boom telescope is due to a particular hydraulic operation which enables the boom to extend or retract.
Jib: The jib is a latticed structure which extends from the boom.
Boom Swing: Boom swings have a large ball or roller connected to the carrier. It could 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: Outriggers are units which cranes would utilize to maintain its balance. It uses 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'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 6350 kg or 14,000 lbs.
Boom Elevation: The boom of the crane ascends using double hydraulic cylinders which allow for lowering and raising materials.
Rotex Gear: The rotex gear is operated by hydraulics and located underneath the cab. It enables the boom to swivel on this gear.