The present invention relates to a magnetic quick mounting unit for construction machines, particularly road pavers, having a positioning mark configured for permanent attachment to a construction machine, an attachment device which can be magnetically attached on the positioning mark, an alignment mark arranged on the attachment device and indicating the alignment of the attachment device, and an alignment aid arranged on the positioning mark, the alignment mark and the alignment aid being configured such that the alignment of the attachment device relative to the construction machine can be read from the relative position of the alignment mark to the alignment aid when the attachment device has been attached on the positioning mark. The present invention further relates to a method for magnetic quick-mounting of an attachment device, particularly a camera, to a construction machine, particularly a road paver, comprising the steps of: attaching a positioning mark with an alignment aid on the construction machine; attaching an alignment mark on the attachment device; magnetically attaching the attachment device on the positioning mark; and aligning the attachment device by means of the relative positions of the alignment aid and the alignment mark. Furthermore, the present invention relates to a construction machine having such a magnetic quick mounting unit.

A self-propelled earth working machine includes a machine frame, a working apparatus, at least one function apparatus, a drive system including first and second motors, a function transmission and a working transmission. The working transmission is configured to transmit torque between the drive system and the working apparatus. The working transmission connects the first motor and the second motor to the working apparatus for the transmission of torque such that the working apparatus may be driven to perform the earth working movement solely by the first motor or solely by the second motor or jointly by the first and second motors, wherein the working transmission connects the first motor to the working apparatus at a first transmission ratio and connects the second motor to the working apparatus at a second transmission ratio different from the first transmission ratio.

A paving machine includes an operator station including an operator display, a hopper to store paving material, a conveyor system to transfer the paving material to a dispersion system, and an emulsion system. The emulsion system includes an emulsion tank to store and dispense emulsion fluid, a sensor to measure a level of emulsion fluid, and a light indicator located in a forward line of sight from the operator station and including a first light portion signaling a tank full condition, and second light portion signaling an tank low condition.

A method for operating a self-propelled road construction machine as well as a road construction machine with which an adjustment of the traction of the wheeled undercarriage can be performed in a quick and easy manner by monitoring and actively regulating the traction of the tires in dependence on the operating mode of the road construction machine. Pavers and feeders for the making of road covers have a wheeled undercarriage, especially with pneumatic tires. For a uniform production process of the road cover, adequate traction of the tires is needed. For this, prior to the start of the production process the tire air pressure of the tires is decreased, and it is increased once again for travel on the road, and the manual adjustment of the tire air pressure to the installation conditions and/or to the operating mode of the road construction machine is time consuming and cost intensive.

A method for operating a ratchet assembly. The method includes, when a ratchet lock mechanism is in a first locked position, causing a drive mechanism to rotate by operating a steer cylinder in a selected direction until a first predetermined value, which may be associated with an amount of rotation of the drive mechanism, is reached. The method includes unlocking the ratchet lock mechanism, and resetting the steer cylinder by operating the steer cylinder in an opposite direction until a second predetermined value is reached. The method includes locking the ratchet lock mechanism in a second locked position, and, upon locking the ratchet lock mechanism in the second locked position, causing the drive mechanism to further rotate by operating the steer cylinder in the selected direction until a third predetermined value is reached, wherein the third predetermined value is associated with a selected amount of rotation of the drive mechanism.

A method is provided for controlling a road finishing machine with a material bunker for receiving paving material, a screed for compressing the paving material, a drivable rear wheel and a drivable front wheel. A rotational speed of the rear wheel of the road finishing machine is measured. Moreover, a travel speed of the road finishing machine is measured. A target driving torque of the front wheel of the road finishing machine is calculated based on the measured rotational speed of the rear wheel and the measured travel speed of the road finishing machine. Then, an actual driving torque of the front wheel is adjusted to the calculated target driving torque. The disclosure also relates to a road finishing machine.

The present invention relates to a magnetic quick mounting unit for construction machines, particularly road pavers, having a positioning mark configured for permanent attachment to a construction machine, an attachment device which can be magnetically attached on the positioning mark, an alignment mark arranged on the attachment device and indicating the alignment of the attachment device, and an alignment aid arranged on the positioning mark, the alignment mark and the alignment aid being configured such that the alignment of the attachment device relative to the construction machine can be read from the relative position of the alignment mark to the alignment aid when the attachment device has been attached on the positioning mark. The present invention further relates to a method for magnetic quick-mounting of an attachment device, particularly a camera, to a construction machine, particularly a road paver, comprising the steps of: attaching a positioning mark with an alignment aid on the construction machine; attaching an alignment mark on the attachment device; magnetically attaching the attachment device on the positioning mark; and aligning the attachment device by means of the relative positions of the alignment aid and the alignment mark. Furthermore, the present invention relates to a construction machine having such a magnetic quick mounting unit.

A road paver with at least one operating module to enter operating commands. The operating module comprises a plurality of buttons that can each be pressed in a contact-based way to enter the respective operating commands in order to activate relevant operating functions of the road paver. According to the disclosure, the road paver further comprises a sensor unit that is designed to detect a distance of an operator to the operating module, whereby this distance determines a space from the operating module to any body part of the operator. The sensor unit is connected to a control unit of the road paver that is configured to already activate at least one of the operating functions of the road paver by means of the output signal as soon as the operator undercuts a predetermined threshold distance in relation to the operating module.

A construction machine according to the disclosure comprises a primary drive configured to generate waste heat and one or a plurality of machine components, the machine components being arranged in the area of the primary drive of the construction machine. At least one of the machine components is arranged in a housing including at least one flow passage through which ambient air is sucked using underpressure or which can have ambient air supplied thereto using overpressure so that an air current is created.

A method for operating a ratchet assembly. The method includes, when a ratchet lock mechanism is in a first locked position, causing a drive mechanism to rotate by operating a steer cylinder in a selected direction until a first predetermined value, which may be associated with an amount of rotation of the drive mechanism, is reached. The method includes unlocking the ratchet lock mechanism, and resetting the steer cylinder by operating the steer cylinder in an opposite direction until a second predetermined value is reached. The method includes locking the ratchet lock mechanism in a second locked position, and, upon locking the ratchet lock mechanism in the second locked position, causing the drive mechanism to further rotate by operating the steer cylinder in the selected direction until a third predetermined value is reached, wherein the third predetermined value is associated with a selected amount of rotation of the drive mechanism.