Brother BE-438B, Service Manual

Page: 118 / 198

5. ADJUSTMENT
５
-
１７
. Adjusting the thread wiper
[Solenoid type]
Approx.
20mm
Needle point
<KE-432B, 432C>
<BE-438B, 438C>
3460Q
2579Q
3457Q
3459Q
3458Q
1. Remove the top cover (1) and the work clamp arm assembly (2).
Remove the top cover (1) and the button clamp assembly (2). [BE-438B, 438C]
2. While the sewing machine is stopped, loosen the set screw (5) and move the thread wiper arm assembly (6) up or
down to adjust so that the clearance between the tip of the needle and the top of the wiper is 2 ± 0.5 mm when the link
assembly C (3) of the work clamp lifter mechanism is pushed and the thread wiper (4) has passed below the needle.
* This adjustment should be made while the sewing machine is stopped. Be careful not to turn the machine
pulley, otherwise the tip of the needle will move.
3. Remove the rubber cap (7) and loosen the set screw (8) to adjust the thread wiper so that it is approximately
20 mm from the needle when it is at the standby position.
KE-430B, 430C series 111