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The repair size method repairs the damaged parts to change their geometric shape dimensions, and is accompanied by correspondingly changed fittings to achieve the specified fitting technical parameters. If the cylinder of the Dongfanghong-75(54) tractor is worn out, the honing diameter can be increased by 0.25, 0.5, 0.75, 1.0 or 1.25 millimeters in accordance with the repair size, and correspondingly enlarged pistons and piston rings are used.
The additional parts method uses a special part to assemble to the worn part of the part to compensate for the wear of the part and restore its original mating relationship.
Replacement Parts and Partial Replacement Methods When a part becomes damaged and cannot be repaired or the repair cost is too high, a new part replacement is applied. If parts of the part are partially damaged, the damaged part can be removed and a new part can be re-created by welding or Other methods connect the new replacement part with the base part of the original part to restore the working ability of the part.
Precautions must not destroy the accuracy of the parts; they must not reduce the surface hardness and wear resistance of the parts; they must not change the metal matrix of the parts and produce harmful residual forces, and they must not affect the processing of parts after repair.
Agricultural machinery wearing parts repair technology
Adjust the transposition method to replace worn parts with one position and continue working with parts that are not worn or lightly worn.