Atlanta Attachment Company 4300BC, Technical Manual & Parts Lists

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Technical Manual & Parts Lists
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2.- Adjusting the lower lopper
Lower looper setting distance
When the lower looper is at the farthest position to the left, adjust
setting distance (B) between the center line of the overlock needle and
the point of the lower according to the machine type. To make this
adjustment, loosen screw (5) and move looper holder (7) left or right
as required.
Lower looper front-to-back adjustment
When the point of the lower looper has reached the center line of the
needle from the left, the needle should be deflected 0-0.03mm toward
the operator by the lower looper.
To make this adjustment, loosen (5) and move looper holder (7) front
or back as required by turning adjusting screw (5).
3.- Adjusting the upper lopper
1. When the upper looper is at the farthest position to the left,
adjust distance (a) between the center line of the overlock
needle and the point of the upper looper. After this adjustment,
tighten screw (2) temporarily.
2. When the point of the upper looper and the back of the lower
looper are going to cross, set distance © at approximately
0.5mm and distance (d) at approximately 0.2mm. Then tighten
screw (2).
3. When the upper looper is at the farthest position to the left,
adjust distance (b) between the center line of the overlock
needle and the point of the upper looper. The setting distance and
positioning of the upper looper depend on the machine type.
Check the name plate for the type of your machine and then
select the correct upper looper setting distance and positioning of
the upper looper
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