Every day in the use of electric sewing machines, motor rotation, no card line, how to do?
The reasons are as follows:1, starting torque is too small, coupled with excessive friction, resulting in start-up difficulties2. The motor is out of phase. The single phase takes into consideration whether the main winding or the winding winding is short circuited or the capacitor is damagedAn 3, motor and relative error is too large, resulting in uneven air gap, different rotor shaftTerms of settlement：The motor can be removed, then the internal condition is checked and the torque is replaced.
The suspension can be sure if the screw loose inside suspension plus something wheel with protective cover would put the line around the shaft too many machines will not turn the folded down dropped it generally these two problems by rotating a handwheel
