Due to the way they particularly work, hydraulic truck cranes are different compared to other crane types. Instead of using a winch in order to wind up cables to provide the lifting force, hydraulic cranes use oil instead. As oil is a type of fluid that retains its volume, it is incompressible. Thus, 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 hydraulic pump creates a pressure which moves the piston. This action is maneuvered by the driver utilizing the controls inside his cab. Normally, hydraulic truck cranes utilize a pump that has 2 gears.
The truck mounted crane can move from one site to another with little need for dismantling. 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 extend or retract thanks to hydraulics.
Jib: The jib is a latticed structure that extends from the boom.
Boom Swing: The boom swing is a big roller or ball that is attached to the carrier. It can swing 360 degrees in both directions. Hydraulic mechanisms provide swings at various speeds and control the swing in order to revolve the turntable gearbox.
Outrigger: Outriggers are units which cranes would use to maintain its balance. It uses hydraulics to lift the truck.
Load Movement Indicator: In order to alert the driver 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 can 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 supplies.
Rotex Gear: The rotex gear is situated underneath the cab and operated by hydraulics. It enables the boom to swivel on this gear.