Hydraulic truck cranes are different compared to other crane types due to the way they specifically work. Hydraulic cranes use oil rather than using a winch in order to wind up cables to provide the lifting force. Because oil is a type of fluid which retains its volume, it is incompressible. Hence, 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 created by the hydraulic pump moves the piston. This action is maneuvered by the driver utilizing the controls inside his cab. Typically, hydraulic truck cranes use 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 Components
Boom Telescope: The boom telescope enables the boom to extend or retract because of hydraulics.
Jib: Jibs are latticed structure booms..
Boom Swing: The boom swing is a large ball or roller which is attached to the carrier. It can swing 360 degrees in both directions. Hydraulic devices provide swings at various speeds and control the swing in order to revolve the turntable gearbox.
Outrigger: Outriggers are units which cranes will utilize to maintain its balance. It uses 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's purpose is to steer the outrigger.
Steel Cables: The steel cables are reinforced and run through the boom and the jib. They are able to generate up to 14,000 lbs. or 6350 kg.
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 beneath the cab. It enables the boom to swivel on this gear.