A cleaning assembly for a harvester operable to clean a crop while moving along a direction of the crop flow, comprising - a fan assembly comprising • a fan operable to rotate about a rotation axis transverse to the direction of the crop flow for generating a flow of air; and • a first fan outlet and a second fan outlet operable to output the flow of air generated by the fan, the first fan outlet being arranged at an upstream side of the rotational axis and the second fan outlet being arranged at a downstream side of the rotational axis; - a first sieve assembly comprising at least one reciprocable sieve (22, 24) and extending along the direction of the crop flow, an upstream end of the first sieve assembly being arranged near the first fan outlet such that the flow of air from the first fan outlet generally flows along the first sieve assembly and the direction of the crop flow; and - a second sieve assembly comprising at least one reciprocable sieve (32, 34, 36) and extending along the direction of the crop flow, an upstream end of the second sieve assembly being arranged near the second fan outlet such that the flow of air from the second fan outlet generally flows along the second sieve assembly and the direction of the crop flow, the second sieve assembly further comprising a clean grain auger arranged below the second sieve assembly for receiving cleaned grain therefrom, CHARACTERISED IN THAT the first sieve assembly comprises a further clean grain auger arranged below the first sieve assembly for receiving cleaned grain therefrom. - a fan assembly comprising • a fan operable to rotate about a rotation axis transverse to the direction of the crop flow for generating a flow of air; and • a first fan outlet and a second fan outlet operable to output the flow of air generated by the fan, the first fan outlet being arranged at an upstream side of the rotational axis and the second fan outlet being arranged at a downstream side of the rotational axis; • a fan operable to rotate about a rotation axis transverse to the direction of the crop flow for generating a flow of air; and • a first fan outlet and a second fan outlet operable to output the flow of air generated by the fan, the first fan outlet being arranged at an upstream side of the rotational axis and the second fan outlet being arranged at a downstream side of the rotational axis; - a first sieve assembly comprising at least one reciprocable sieve (22, 24) and extending along the direction of the crop flow, an upstream end of the first sieve assembly being arranged near the first fan outlet such that the flow of air from the first fan outlet generally flows along the first sieve assembly and the direction of the crop flow; and - a second sieve assembly comprising at least one reciprocable sieve (32, 34, 36) and extending along the direction of the crop flow, an upstream end of the second sieve assembly being arranged near the second fan outlet such that the flow of air from the second fan outlet generally flows along the second sieve assembly and the direction of the crop flow, the second sieve assembly further comprising a clean grain auger arranged below the second sieve assembly for receiving cleaned grain therefrom,