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13
Looper motion
.05.22
Requirement
In the following positions the looper point should be positioned at the same height:
a) When, after turning the balance wheel in the sewing direction, the looper point is on the
left side of the needle.
b) When, after turning the balance wheel back from position a), the looper point is on the
right side of the needle.
Fig. 13 - 22
● Insert a new needle.
● Turn the balance wheel until the looper point approaching from the right is positioned on
the left side of the needle.
● In this position fasten the screw clamp (part no. 08-880 137-00) on the needle bar, so that
the upward movement of the needle bar is blocked.
● Turn the balance wheel against the sewing direction, until the screw clamp is touching
the needle bar frame again.
● Check requirement.
● If necessary, remove the screw clamp and adjust gear 1 (screws 2) according to the
requirement.
a
2
1
Adjustment
b
13 - 27
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