Brother 431B Sewing Machine User Manual


 
5. ADJUSTMENT
-16. Changing the work clamp lift (KE-435B, 435C, 436B, 436C)
Standard lift amount of the work clamp (1) is 3 mm (max. 8 mm).
3 - 5mm
Decrease
Increase
0.5 - 1mm
2627
Q
2483Q 2626Q
Adju
sting work clamp lift to 3 - 5 mm
1. Loosen the screw (2) and open the stepping cover (3).
2. Loosen the nut (4) and adjust the stepping work clamp connecting rod (5) position.
* If you would like to increase the work clamp lift, move the stepping work clamp connecting rod (5) up, and if
you would like to decrease it, move the stepping work clamp connecting rod (5) down.
Adjusting work clamp lift to 5 - 8 mm
1. Loosen the screw (2) and open the stepping cover (3).
2. Loosen the nut (4) and adjust the stepping work clamp connecting rod (5) position.
* If you would like to increase the work clamp lift, move the stepping work clamp connecting rod (5) up, and if
you would like to decrease it, move the stepping work clamp connecting rod (5) down.
3. Remove the face plate and turn the pulley by hand to set the work clamp to its lowest point. Loosen the bolt (9)
of stepping work clamp arm R (8). Adjust the clearance between the presser bar lifter (6) and the presser bar
bush (7) to 0.5 - 1 mm.
<If vertical movement of the work clamp is not required>
1. Remove the face plate (1).
KE-430B, 430C series
110
2.
Remove the shoulder screw (2) and re-attach the
stepping link assembly (3) to the upper screw
hole (a) of the stepping work clamp arm F (13).
3455Q 3456Q