Seiko TH-2B Instruction Manual

14, (E)Timing of needle and hook ® Positioning of needle and the tip of hook When the needle bar has risen 4.5nutt - 5.5mm from its lowest positioni the tip of the hook should meet the center line of the needle 4^ 2.3niiii'—3iaa V *4- 4.5iDni'-~5> 5iiun Distance between the u…

17, 1. POSITION OF CAM(i^^28102) FOR CONNECTING ROD Turn the h^Andwheel until the needle bar lowers by O.ifmm from its top dead center. At this point, set the cam(;^f28l02) with the groove on the cam faces the top. ( or -l^urn the cam, /'/28102, to make i^mm distance between the groove on …

5, Setting the needle Tii-rn +hP balance wheel over tov/ard you until the needle "bar ita hisLst Mint. Loosen the needle clamp sorew(l). Sold Ind insert the Ledle(2) into the needle bar hoi® "P as deeply as it will go, keeping the long groove of the needle to the left and tighten the set sor…

6, Seiko TH-2B 4 Removal and insertion of bobbin ORemoval of bobbin Open the bed slide, then observe the hook position (as shown figure) and drop-do^ the needle bar at lowest point, then apring(l) and bobbin caseu) and depress the snap spring and pull up the bobbin case outward and take the bobbin out of the bobb…

11, 11 Timing of thread tension releasing meohanism (a) When moving the lifting lever(l), upper thread should be adjusted so as to Sdo. (b) Adjustment Pull-up the presser "bar lifter(3), the clearance should be made over 3mm between tip of the tension releasing plate(4) and tension disc(5)…

8, 6 Needle threading Pass the thread in the order numerically instructed in the figures. Spool pin—^(2) Thread guide of thread tension (3) Clearance between two tension discs ^(4) Thread guide of thread tension ^(5) Thread controller discs ® single turn >-(6) Thread guide 5^ Te…