Brother International EF4-B561 Service Manual - Page 15
PRESSER, MECHANISM, Procedures, KNIVES
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El PRESSER FOOT AND FEED MECHANISM I ee (2> L Procedures Q'ty of screw I Remove presser foot 0. 1 (In case of safety stitch, after pull out pin 0, remove presser foot 0.) 2 Turn the pulley until the needle bar is raised to the highest position. LI KNIVES MECHANISM -OD Q'ty of screw 3 Remove needle plate S. 2 4 Remove differential feed dog O. 1 5 Turn the pulley until the under looper to the left mostly and remove main feed dog 0 . 1 6 Remove chain feed dog. 1 4 0 c9D Procedures Q'ty of screw 1 Loosen screw 0 and turn lower knife holder to the left direction, then tighten it. 2 Remove upper knife 49. S. 3 Remove upper knife holder O. 4 Remove nut 1 5 Remove lower knife as holding it by hand. 1 Q'ty of screw 6 Remove lower knife holder guide 0. 2 7 Remove lower knife holder 9 as holding it by hand. (Pull out spring for lower knife holder 1 also.) 8 Remove lower knife holder. supporter 0. 2 (At first loosen bolt Q under the needle plate support bracket (1) .) - 13 -