A method of maintaining artificial turf using a turf maintenance robot. The artificial turf comprises an artificial turf carpet, wherein the artificial turf carpet comprises turf fibers which form an artificial turf surface. The artificial turf fibers have a grain. The artificial turf comprises artificial turf infill distributed between the artificial turf fibers. The turf maintenance robot is a self driving robot, wherein the turf maintenance robot comprises a memory for storing turf grain data descriptive the grain of the artificial turf fibers. The method comprises brushing the artificial turf surface by the turf maintenance robot. The turf maintenance robot performs the brushing dependent upon the turf grain data.

A method of maintaining artificial turf using a turf maintenance robot. The artificial turf comprises an artificial turf carpet, wherein the artificial turf carpet comprises turf fibers which form an artificial turf surface. The artificial turf fibers have a grain. The artificial turf comprises artificial turf infill distributed between the artificial turf fibers. The turf maintenance robot is a self driving robot, wherein the turf maintenance robot comprises a memory for storing turf grain data descriptive the grain of the artificial turf fibers. The method comprises brushing the artificial turf surface by the turf maintenance robot. The turf maintenance robot performs the brushing dependent upon the turf grain data.

A walk reel mower has a traction frame that carries at least one ground engaging member operatively powered by a prime mover. A rotatable cutting reel is operatively powered by the prime mower for pushing grass against a bedknife to cut the grass. A handle assembly is used to guide and manipulate the mower, and a traction bail on the handle assembly disengages and engages the traction drive. The traction bail is movable between first and second positions that have a range of motion large enough to permit the user to move the control into at least one intermediate position to produce a reduced ground speed greater than zero but less than the nominal ground speed.

A cleaning device with a frame can be driven on a ground surface and with a vibrating screen which is mounted on the frame such that it can be moved to a limited extent and which is connected to a contact element. A vibrating roller is attached to the frame such that it can be rotated about a rotary axis, and it has an outer surface, in which radial elevations are formed. A pre-tensioning element pre-tensions the vibrating screen such that the contact element lies against the vibrating roller.

A greens roller having a transportation configuration and a rolling configuration, the greens roller comprising: a chassis having powered wheels, the wheels defining a driving direction; one or more rollers rotatably mounted to the chassis, the one or more rollers defining a rolling direction that is different to the driving direction; wherein in the transportation configuration the wheels are lowered to support the chassis for driving the greens roller, and in a rolling configuration the wheels are raised so that the one or more rollers support the chassis for rolling the greens roller on a green.

A greens roller having a transportation configuration and a rolling configuration, the greens roller comprising: a chassis having powered wheels, the wheels defining a driving direction; one or more rollers rotatably mounted to the chassis, the one or more rollers defining a rolling direction that is different to the driving direction; wherein in the transportation configuration the wheels are lowered to support the chassis for driving the greens roller, and in a rolling configuration the wheels are raised so that the one or more rollers support the chassis for rolling the greens roller on a green.

A hydraulic or electric de-thatcher power lift assembly attachment that provides control while de-thatching because it is stable and efficient and can be lifted with ease at any time when dealing with difficult terrain. In an example embodiment, the hydraulic version fits hydraulic equipped tractors. In an alternative embodiment, the device may be used with an electric motor from the tractor, or can have its own dedicated battery for power. A hydraulic or electric lift assembly is also provided for a lawn aerator. The various attachments are designed to replace the standard manual lift lever on standard aerators. The attachments can be used on tractors that have hydraulics built into the tractor or on tractors with an electric motor.

A rolling assembly, the rolling assembly including: a body; one or more surface rollers rotatable with respect to the body; and at least one rotatable sweeping device including: an elongate member rotatable with respect to the body; and a sweeping head located over the elongate member and rotatable with respect to the elongate member, wherein the sweeping head is configured to engage with the one or more surface rollers such that the rotation of the one or more surface rollers rotates the sweeping head.

A golf green hole-making device has longitudinal, radial, and angular directions, and includes a cutting cylinder, a structure, a weight, a weight propulsion device, a soil expulsion piston, a piston driving mechanism, and an expulsion activating mechanism. The cutting cylinder has an open end that is freely movable longitudinally. The structure includes a guide with which the weight engages to move along a weight path between first and second endpoints, when propelled by the weight propulsion device, causing the weight to strike the cutting cylinder and urge the cutting cylinder in the longitudinal direction. The soil expulsion piston moves inside the cutting cylinder along its axis. The piston driving mechanism transfers force from the weight propulsion device to the soil expulsion piston to drive the soil expulsion piston towards the open end. The expulsion activating mechanism engages and disengages the piston driving mechanism in relation to the weight propulsion device.

A golf green hole-making device has longitudinal, radial, and angular directions, and includes a cutting cylinder, a structure, a weight, a weight propulsion device, a soil expulsion piston, a piston driving mechanism, and an expulsion activating mechanism. The cutting cylinder has an open end that is freely movable longitudinally. The structure includes a guide with which the weight engages to move along a weight path between first and second endpoints, when propelled by the weight propulsion device, causing the weight to strike the cutting cylinder and urge the cutting cylinder in the longitudinal direction. The soil expulsion piston moves inside the cutting cylinder along its axis. The piston driving mechanism transfers force from the weight propulsion device to the soil expulsion piston to drive the soil expulsion piston towards the open end. The expulsion activating mechanism engages and disengages the piston driving mechanism in relation to the weight propulsion device.