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AZ8600SD
In case of 3-needle safety stitch machines
(1)Height of needle
(2)Installation angle of lower looper
(3)Fix the distance between needle and lower looper, the front-and-rear positionof lower
looper temporarily
(4)Parallel of needles
(5)Front-and-rear position of upper looper
(6)Distance between needle and upper looper
(7)Front-and-rear position of lower looper
(8)Distance between needle and lower looper
(9)Timing relation between lower looper and upper looper
Make adjustment by following the steps below:
In case of 2-needle safety stitch machines
(1)Height of needle
(2)Front-and-rear position of upper looper
(3)Distance between needle and upper looper
(4)Installation angle of lower looper
(5)Front-and-rear position of lower looper
(6)Distance between needle and lower looper
(7) Timing relation between upper looper and lower looper
6.9 Needles and loopers
6.Adjustment of sewing machine