JUKI DLN-6390 Engineer's Manual page 33

Adjustment Procedures
1) Assemble hemming binder cylinder 1 so that the clearance
provided between the end plane of shaft 2 of the hemming
binder and cylinder cap 3 is 2 mm.
* The aim of open amount of the binder is 13 mm.
(Caution) If the clearance is excessively small, top end 4 of
the guide section in the rear face of the binder
comes in contact with groove 5 in the base plate,
and the binder may be damaged when the binder
is fully opened. Do not make the clearance
excessively small.
Adjustment Procedures
1) Draw up the looseness of the screw hole in the direction of the
arrow mark A and fix presser 1 with setscrew 3 at the position
where the top end of presser foot 2 comes in contact with
presser 1.
In this state, the bottom surface of presser 1 is almost flush
and cloth can be pressed by the whole bottom surface when
presser 1 runs on the overlapped section of thick materials.
Results of Improper Adjustment
Results of Improper Adjustment
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