PRONAR T743, Operator'S Manual

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Pronar T743 SECTION 3
3.8
Speed of inflow of grain to container channel depends on the setting of channel slides (6),
placed over conveyors.
Auger conveyors transporting grain in container channels have a variable pitch, which
prevents blocking during unloading and enables even transport of grain from rear part of low
box to the collecting auger conveyor. Rotation speed of conveyors (1), (2) and (3) is
dependent on the setting of gear wheel lever on front wall of load box.
3.4 FRONT CONVEYOR
Front conveyor is made in two basic elements: vertical conveyor (1) – figure (3.6) and folding
back conveyor (2). Collecting pipe (7) is directly connected to the front wall of the container.
Inside the pipe is placed the collecting auger conveyor, which transfers load from load box to
front conveyor. Grain is then transported by conveyors (1) and (2) the regulated discharge
chute (4).
Power transmission of auger conveyors is transmitted through front chain gearing and then
through intersecting axis gear placed in the lower part of the vertical conveyor pipe. After
connecting PTO drive in tractor both auger conveyors begin to rotate. Gathering auger
conveyor and auger conveyors placed in low box rotate after initiation of hydraulic clutch.
The upper conveyor (folded down), is raised and lowered by the age of a hydraulic ram (2) –
figure (3.7). After complete extension of folded down conveyor the locking bolt (6) bolts the
striker tube and is clamped by spring (5). At the moment of starting the hydraulic ram (1), the
striker (4) moves the bolt, folding conveyor is secured, due to which upper sub-assembly is
placed in transport position.