Loop stroke adjustment gauges

The exact adjustment of the thread loop stroke for sewing machines is important to avoid skip stitches.

For many medium and heavy duty machines, there are adjustment gauges available. It is recommended to use the gauge and a corresponding regulating block:

1,8 mm loop stroke for class 804:
gauge 0981 150001
regulating block 0981 150002

2 mm loop stroke for classes 67, 68, 69, 98, 167, 168, 169, 396, 467, 802, 972, 973:
gauge 0981 150003
regulating block 0981 150002

2,5 mm stroke for class 220:
gauge 0981 150005
regulating block 0981 150006

3,6 mm stroke for classes 104 (except 104-102), 105 (except 105-64), 205-MO:
gauge 0981 150004
regulating block 0981 150002

5 mm stroke for classes 104-102, 504, 971-801:
gauge 0981 150012
regulating block 0981 150002


Adjustment gauge and regulating block 2mm for loop stroke for Dürkopp Adler sewing machines