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(6) Adjustment of the looper motion paths
1. Looper momentum in the front-rear direction
(1) The standard position of the front looper is decided under the condition that the tip of the needle
touches the rear of the front looper at 1/4" from the bottom surface when the pulley is rotated
counterclockwise and the front looper is moved from right to left after mounting the front looper in a
standard manner.
(2) For the middle and rear loopers ( and ), the standard position for each is decided under the same
condition as the front looper, i.e. the tips of the needles ( and ) touch the rear of the loopers at 1/4" from
the bottom surfaces, respectively.
(Caution) If the material has a thick unevenness during sewing, contact areas between the needle tips
and the rear surfaces of the loopers ( and ) may become smaller. (to prevent needle tip
breakage)
• •
• •
1/4" from the
bottom surface
Right-left direction
Differential feed model
Model: 35800DNU
1 piece feed model
Model: 35800DRU
Up-down direction
Up-down direction
Standard Adjustment
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