Maintenance Book04BAD SEWING?554-7 Adjustment of the Upper Thread Supplying Wire?供給?器?Fig. 11) Fig. 1 .Loosen the screw and move the thread pulling wire left and right to adjust the upper thread remain after thread trimmer.?開固?，?供給?器?，? ?。Fig. 33) Fig. 3 .The second thread tension adjusting Assy will adjust the thread remain along with the thread pulling wire.?供給?器，?。Fig. 22) Fig. 2 . .If the thread pulling wire is moved in the direction, the thread remain grows shorter. If the thread pulling wire is moved in the direction, the thread remain grows longer.?供給?器，?減?， ?，?加。MFig. 44) Fig. 4 .The second thread tension adjusting Assy can make adjustments as long as the thread guide disc rotates smoothly.?內，?。http:/www.taida58.com http:/www.taida58.cnFig. 11) Fig. 1 .Use the tension adjusting screw on the bobbin case to adjust the lower thread tension. ?殼?。Fig. 22) Fig. 2 .Open the removable lever of the bobbin case. ?開?殼?/?杆。Fig. 33) Fig. 3 .Disassemble the bobbin case in the direction of the arrow for separation.?殼。Fig. 44) Fig. 4 .Turn the tension adjusting screw to adjust the lower thread tension.?，?。04BAD SEWING?4-3 Adjustment of the Lower Thread Tension?45Maintenance BookS(B)S(B)http:/www.taida58.com http:/www.taida58.cnFig. 65) Fig. 6 .Choose the thread guide depending on sewing machine types.根据?机机?，?。6) ： , ： Thread guide ：non-thread trimmer type, Thread guide ： thread trimmer type?：?机?, ?：?机?Fig. 77) Fig. 7 .Put the bobbin case back to the original place, while taking a caution not to get the end of the lower thread located between the hook and the bobbin case. ?殼?，?殼?間?能?。KM-2070 Series46Fig. 5 .Turn the tension adjusting screw clockwise, and the lower thread tension gets stronger. Turn it counter clockwise, and the lower thread tension gets weaker.?，?加，? ?，?減?。S(B)04 BAD SEWING ?424-1 Adjustment of the Upper Thread Tension?1) Fig. 1 .Use the thread tension adjusting assy and the second thread tension adjusting assy to control the upper thread tension.?。Fig. 2Fig. 12) Fig. 2 .Turning the thread adjusting nut clockwise, the tension of the upper thread gets stronger. If it is turned counter clockwise, the tension of the upper thread gets weaker.?，? ?加，?，?減?。Fig. 33) Fig. 3 .Turning the thread tension adjusting stud clockwise, the thread remain of the upper thread gets shorter. If it is turned counter clockwise, the thread remain of the upper thread gets longer. ?，?減 ?，?，?加。http:/www.taida58.com http:/www.taida58.cnMaintenance Book04BAD SEWING?43Fig. 44) Fig. 4 .If the tension of the thread tension adjusting stud is too weak, the felt does not rotate. Make sure that the tension is not too weak. ?過?，?滾? ?能?。Fig. 5 .If the felt does not rotate, it may lead to defective sewing. ?能?，?。KM-2070 Series565) Fig. 5 4050mm .The upper thread remain after thread trimmer has different lengths depending on the types of thread used. On average, its length is set at 4050mm.?，?根据?，? 4050mm。Fig. 5