Brother HE-800A Service Manual page 71

Electronic lockstitch button holer
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4232Q
4234Q
8. Provisionally install the cutter holder (18) to the cutter driving shaft (1) with the bolt (19).
9. Provisionally install the cutter holder M (20) to the cutter holder (18) with the two bolts (21).
10.Provisionally install the cutter holder DL (22) to the cutter holder M (20) with the two screws (23).
11.Provisionally install the cutter (24) to the cutter holder DL (22) with the screw (25).
12.Fully tighten the bolts (19) and (21) so that the cutter (24) is in the center of the cutter groove in the needle
plate (26) when the cutter is lowered.
13.Tighten the two screws (23) so that the distance between the needle bar (27) and the cutter (24) is 0.3 mm.
14.Install the cutter (24) with the screw (25) so that the tip A of the cutter blade is aligned with the top of the needle
plate when the cutter is pressed down by hand to its lowest position.
If using the flat cutter (28), install with the screw (25) so that there is a clearance of 1.5 - 2.0 mm between the
cutter and the top of the needle plate.
Place against end of shaft
HE-800A
3. ASSEMBLY
4233Q
Lowest position
Top of needle
plate
Lowest position
Top of needle
plate
4235Q
63

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