How to fix hook timing and replace hook for juki Lu-1510-7,dial to zero(0)the timing procedure also same the other machine like juki lu-1510-7and lu-1510N-7,turn on handwheel loosen needle bar screw,needle bar conection to adjust so that a clearance of a1.5 mm is provided between the top end of the needle,blade point,of the hook when needle bar raised by 2.3mm from the lowest position,the tighten the screw again,turn the handwheel make a needle bar ascend by 2.3mm from the lower position,and tighten back screw set,loosen the small gear screw ,when u install hook ,tighten screw first for groove hook shaft,loosen set screw for large hook gear and move right or left,adjusting blade point for the hook aligned with the centr of needle,Make a distance needle and hook 2or 2.3mm,and tighten screw.

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