typical TW7-6BR - Installing the Hook Retainer Bracket; Installing the Feed Dog; Adjusting the Zigzag Width

21.Installing the hook retainer bracket(Fig.17)
23.Adjusting the zigzag width (Fig.19)
19
7
17
22.Installing the feed dog (Fig.18)
18
OpenthecoverA,thenloosenthescrewCtomake
the lever B move upward to decrease the zigzag
width or downward to increase zigzag width.
The Zero means the straight stitch.
.
.
While install the hook reatainer bracket E, first
tighten the screw D, adjust the clearance between
bracket and hook to 1.2~1.5mm, and the clearace
between the spring tip C and bobbin case to
1~1.2mm, which assure the C to keep the bobbin
case.Pleasedon'tlettheCbetouchedwiththehook
tip B, if so, please adjust the position of E again,
finally tighten the screw D. .
1.2~1.5mm
B
C
A
D
E
1.5mm
A
B
A
A. When the feed amount reaches maximum, the
standard position of feed dog is the clearance
between the feed dog and needle plate is 1.5mm
B. Adjustement: first move the feed dog forward to
the needle plate as it can, then loosen the screw (A)
(Fig.29b), move the feed bar (B) as shown by the
arrow (Fig. 29a), after adjustment, tighten the screw
(A).
.
.
A
B
C
Increase
Decrease