Tar River BDR 210 Original User Manual page 15

Figure 2 Overall machine construction: 1 - suspension frame; 2 – main chassis; 3 – hydraulic cylinder (depending on the model);
4 – cutting unit; 5 – cover assembly; 6 – working section of cutting unit;
7 – support foot.
Suspension system frame is used to connect the mower to a tractor. Through centre frame, the suspension
system frame is connected to the complete working unit with covers.
The working unit consists of two working drums, with cutting blades rotationally embedded in the lower part
of the drums. Diagram of the drive system is shown in Figure 3.
Figure 3 Eco CUT 210 drive system diagram: 1 – articulated telescopic shaft with one-way clutch; 2 – drive head shaft; 4 – V-belt
transmission; 5 – main frame shaft; 6 – bevel gear; n1 – rotational speed of tractors PTO; n2 – rotational speed of drums (values
given in Table 2); z1 – large bevel gear; z2 – small bevel gear.
The drums are driven by the tractors PTO shaft. Together with the blades, they rotate in opposite directions,
cutting plants and forming green forage in a swath. The one-way clutch allows the drums to rotate freely
after the engine is shut off, and protects the driving elements from damage.
Technical-operational data for mowers are provided in Table 2 (below).
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