Sewing machine assembly or assembling after overhaul has a great influence on equipment performance.
Sewing machines with poor assembly quality, low precision, poor performance, loud sound, heavy torque, and short service life; On the contrary, some parts with low precision can still be assembled with better performance after careful selection, assembly, and precise adjustment.
In the process of sewing machine assembly, some links are easily neglected, which often have a significant impact on the assembly quality and need to be paid attention to.
Follow the procedure
All surface-treated sewing machine parts, such as surface baking, plating, etc., have adhesive layers on the assembly joints (including holes, grooves, planes, and screw holes). Therefore, before assembly, these parts must be finish-machined according to the process and technical requirements before they can enter the assembly state. If the assembly does not meet the specified technical requirements, the sewing machine will not work properly. Incorrect positions of parts and mechanisms also affect the performance of the sewing machine.
To ensure parts are clean
Careful cleaning and cleaning of the sewing machine parts is the basis for ensuring assembly quality and extending the service life of the sewing machine. In particular, bushings, bearings, oil pumps, and parts with rotating and oscillating fittings should be cleaned carefully.
If it is not clear when assembling various shaft components, slightly it will cause excessive temperature rise of the bushing and excessive power transmission torque. In severe cases, it will cause accelerated wear due to debris and other serious faults such as "grip".
