Sewing machine assembly details can not be ignored

The first assembly or overhaul of the sewing machine has a huge impact on the performance of the equipment. The sewing machine with poor assembly quality has low precision, poor performance, loud sound, heavy torque and short life; on the contrary, some components with low precision can be assembled with better performance after careful selection and precise adjustment. Good equipment.
During the assembly process, some links are easily overlooked, which often have a significant impact on the quality of the assembly and require attention.
One: to ensure the cleaning of parts by careful cleaning and cleaning, to ensure that the sewing machine parts are clean, is the basis for ensuring assembly quality and extending the life of the sewing machine. In particular, bushings, bearings, oil pumps, and parts with rotating and oscillating fittings should be carefully cleaned.
If the various shaft components are not cleaned, the temperature of the bushing is too high and the transmission torque is too heavy. In severe cases, the debris will accelerate and wear, causing serious problems such as “biting”.
2: According to the procedure, the sewing machine parts that have been subjected to surface baking, electroplating, etc., have adhesive layers on the joint surface (including holes, grooves, planes and screw holes), so before assembly, this type Parts must be finished according to the technical requirements of the process before they can enter the assembly state.
If the assembly does not meet the specified technical requirements, the sewing machine will not work properly. The mutual position between components and between the mechanisms is incorrect, which also affects the working performance of the sewing machine.

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