Import triangle, most of them adopt ordinary belt core of triangle belt core cord belt core, a small number of USES flaps with core. Because both the two core structure for fibre twisting or compiling, the triangle shear to take each other between the fiber core operation gradually breaking elongation. Therefore, adopting the cord belt core and flaps with core production of ordinary triangle can only be used in low load transmission system. Special belt core of triangle belt core of macromolecule polyester steel brown wire overall solid core rod core structure. Because of polyester steel brown wire to the overall solid core structure of untwisted, good adhesion, resistance to flexible, high strength, not run long, not only greatly improve the service life of rubber belt, and the service life of the belt body is balanced, enterprises can free maintenance, regular replacement. 1, choose the model selection of model should be adapted to choose the triangle, otherwise the triangle on the pulley groove can appear abnormal situation. In triangle, zui good with the old to the purchase of agricultural machinery department, in case the model make a mistake. 2, properly installed before the installation, if the structure of the two axis center distance is adjustable, should first will center distance shortened, tape installed to adjust center distance as required; If two axis center distance is not to adjust, can be a triangle set into the first round of the tank, and then turn another pulley, the triangle mount, with the same method will be fitted with a set of triangle. No use tools to pry, hard hard when installing drag on triangle, in case of triangle belt elongation too loose or too tight.