Fella TS 425 T Hydro – specifications

A rotary rake such as the TH 431 D gathers mown and partly dried forage into a single swath, which a baler or forage wagon then picks up. One or more tine rotors run over the ground, with the tine arms guided around a fixed cam track inside each rotor so that they lift the crop on the inner side and lay it down to one side, rather than spreading it across the full rotor width. Swath width can be adjusted through the rotor setting to match the pick-up width of the following machine.

A rake's size depends on the number of rotors and its working width, which must match tractor power. On the road, the trailed implement is subject to the general rules on width, lighting and marking while raised.

On a used machine, what counts is wear on the tines and their mountings, the condition of the cam track and tine-arm bearings, how freely the rotor height adjustment moves, and the tightness and oil level of the rotor gearboxes. Gauge wheels and protective guards should be checked for distortion. It is also worth checking the lift system's hydraulic hoses and the tyres on the gauge wheels, which see particular strain on frequent road journeys.