Adjusting Of The Feed Dog Height; Adjusting The Feed Dog Angle - Brother S-7100A-403 Instruction Manual

7-3

Adjusting of the feed dog height

.
Becomes lower

7-4. Adjusting the feed dog angle

3862M
<-[]03>
0.8mm
<-[]03A>
1.0mm
<-[]05>
1.2mm
Becomes higher
0543D
0544D
Standard
Lower
the front
Raise
the front
3865M
S-7100A
The standard height of the feed dog (1) when it is raised as
far as possible above the surface of the needle plate is 0.8
mm for -[]03 specifications, 1.0 mm for -[]03A specifications
and 1.2 mm for -[]05 specifications.
1. Turn the pulley until the feed dog (1) rises to the highest
position.
2. Tilt back the machine head.
3. Loosen the screw (2).
4. Turn the feed lifting shaft crank (3) to move the feed
bracket (4) up and down.
5. Tighten the screw (2).
The standard angle for the feed dog (1) when it is at its
highest position above the needle plate is when the " " mark
on the shaft (2) is aligned with the feed rocker bracket arm
(3) and the feed dog (1) is parallel to the needle plate.
1. Turn the machine pulley to move the feed dog (1) to its
highest position above the needle plate.
2. Tilt back the machine head.
3. Loosen the two set screws (4).
4. Turn the shaft (2) in the direction of the arrow within a
range of 90° with respect to the standard position.
・ In order to prevent puckering, lower the front of the feed
dog (1). (Fig. [A])
・ In order to prevent the material from slipping, raise the
front of the feed dog (1). (Fig. [B])
5. Securely tighten the set screws (4).
NOTE:
The height of the feed dog (1) will change after the angle
has been adjusted, so it will be necessary to re-adjust
the height of the feed dog (1).
7. STANDARD ADJUSTMENTS
30