Brother XM3700 Service Manual page 173

Adjustment
<From previous page>
10. Match up the right edge of the needle with the outer rotary hook point by turning the outer rotary hook assy
counterclockwise by hand.
*Key point
• When the right edge of the needle matches up with the outer rotary hook point, the large side of the
eccentric amount of the feed cam of the lower shaft should be facing directly frontward.
11. Tighten the screws 1 and 2 of the timing pulley D to secure the timing pulley D to the lower shaft.
1
2
with hex wrench 2.5 mm
[Confirmation]
When the needle is lowered to the lowest point by turning the pulley by hand, check that the feed dog is lowered.
Needle bar rising
Needle bar
Right edge of needle
and tip coincide
Outer rotary hook assy
Set Screw, Socket (CP)
M5X5
1
4 - 20
Feed cam
2
with hex wrench 2.5 mm
Timing pulley D