Needle Bar Height - Brother 888X62 Series Service Manual

Adjustment
[Standard]
At the left needle position straight stitch of pattern selecting dial, the gap between the top
of needle eye and the lower end of the outer rotary hook point in the up/down direction
should be 1.2 ±0.2 mm (1 to 1.4 mm) when the right edge of the needle matches up with
the outer rotary hook point.
[Adjustment]
1. Turn off the power, and then remove the foot controller.
2. Remove the face plate assy, the pattern selecting dial and the feed dial, and remove the
front cover assy and the rear cover assy.
3. Remove the needle plate assy, the presser foot and the inner rotary hook assy.
4. Attach the size 90/14 needle.
5. Attach the pattern selecting dial.
6. Turn the pattern selecting dial until the left needle position straight stitch is the topmost position.
7. Match up the right edge of the needle with the outer rotary hook point by turning the pulley by hand from the
rear to the front.
Pulley
8. Loosen the screw of the needle bar block.
9. Move the needle bar up and down, and adjust the gap between the top of needle eye and the lower end of the outer
rotary hook point.
*Key point
• When moving the needle bar up and down, the needle block do not be diagonal for the machine.
10. Tighten the screw of the needle bar block to secure the needle bar.
1.2 ±0.2 mm (1 - 1.4 mm)
Needle eye
Outer rotary hook assy
Set Screw, Socket (FT) M4X4

Needle bar height

Pattern selecting dial
Needle bar
Tip coincide
block
Needle block
3 - 12
Needle bar
Right edge of needle
Needle
and tip coincide
Screw
Outer rotary
hook assy
Hex wrench
2 mm