30
1
.04.21 Synchronization of roller presser and feed wheel
Set stitch length "3".
By turning the balance wheel, let the needle enter 30 times.
Compare the total sewn length of the lower and upper leather layer.
Adjust clamp 1 (screw 2) according to the requirement.
Clamp 1 must not be positioned diagonally to the rock shaft.
Requirement
After 30 needle penetrations in a strip of leather the total length from the fi rst to the last
penetration should be the same, both in the lower and the upper leather layer.
Fig. 1 - 21
1
2
2
Adjustment
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