Atlanta Attachment Company 4300BC, Technical Manual & Parts Lists

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Technical Manual & Parts Lists
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4.- Adjusting the double chain stitch looper
1.- Adjust clearance (a) between the center line of the double chain stitch needle and the point of
the looper correctly.
1. Turn the hand wheel until the double chain stitch looper is
at its farthest position to the left.
2. Loosen screw (1) and move looper holder (3) left or right
as required.
3. Tighten screw (1) temporarily.
2.- Adjusting the clearance between the looper and the needle
1. Move the double chain stitch looper from the extreme left
end of its travel to the center line of the double chain
stitch needle by turning the hand wheel.
2. Loosen (1) and move looper holder (3) front or back as
required by turning front- to-back adjusting screw (2).
3. Tighten screw (1).
3.- Adjusting the amount of the front-to-back movement of the
double chain stitch looper
Remove cover (4), loosen screw (5) and turn hinge pin (6) as required.
To decrease the amount, turn in the direction of (-).
To increase the amount, turn in the direction of (+).
Adjust the amount when changing the double chain stitch needle.
When changing to the needle of larger number, turn hinge pin (6) in the direction of (+).
When changing to the needle of smaller number, turn hinge pin (6) in the direction of (-).