Needle Drop Position To Presser Foot Hole (Front/Back).4 - Brother XM3700 Service Manual

Adjustment
[Standard]
At pattern selection dial [2] (straight stitch) and stitch width dial [2.5] (center base line), when
the needle top is dropped into the needle hole of the presser foot, the clearance between the
needle hole of the presser foot and the needle top should be the same in the front/back direction.
[Adjustment]
1. Turn off the power, and then remove the foot controller.
2. Remove the face plate and the pattern selection dial, and remove the front cover and
the rear cover.
3. Attach the size 90/14 needle.
4. Attach the pattern selection dial.
5. Turn the pattern selection dial until the [2] is the topmost position.
6. Turn the stitch width dial until the [2.5] is the topmost position.
7. Lower the presser foot lifter and lower the presser foot.
8. Turn the pulley by hand, and drop the needle top into the needle hole of the presser foot.
Stitch width dial
9. Loosen the nut 4 of the screw 1 on the upper side of the needle-presser module.
10. Turn the screw 1, and adjust the clearance between the needle hole of the presser foot and the needle top in
the front/back direction.
*Key point
• Loosen the screw
• Tighten the screw
11. Tighten the nut 4 of the screw 1 to secure the screw 1.
1
1
Hex wrench
2 mm
Back side view
Needle drop position to presser foot hole (front/back)
Pulley
Pattern
selection dial
. (turn to the direction of "A") → Move the needle to the front side. (A)
1
. (turn to the direction of "B") → Move the needle to the rear side. (B)
1
Set Screw, Socket (CP)
M4X12
Nut 4
A
1
4 - 17
Needle
B
A
B
a
b
a=b
Nut 4
Presser foot lifter
Presser foot
Presser foot
Presser foot hole
Needle drop
position