Adjustment Of The Thread Tail After The Trimming; Cancellation Of The Trimming Function; Adjustment Of The Upper Thread Tension - Mitsubishi PLK-E1010 Technical Manual

7-15. Adjustment of the thread tail after the trimming

7-16 Cancellation of the trimming function

If the automatic trimming is not required during the sewing operation, cancel the trimming
function with the setting panel of the control box. For the detail of this instructions, please refer
to the paragraph [4.Program 4 mode display] on
manual CONTROL UNIT
7-17. Adjustment of the upper thread tension release
[NOTE] (a) The upper thread tension release works when the upper thread is trimmed
automatically or the presser foot is lifted during the work holder feeding.
(b) If the upper thread tension release does not work properly when the upper
thread is trimmed automatically, the thread tail from the needle becomes
shorter then, it induces the skip stitch happening or pulling the thread tail out
of the needle at the start of the sewing.
(c) During the sewing operation, the discs (No.1) of the thread tension regulator
is closed while the presser foot is moving up and down.
If the discs (No.1) of the thread tension regulator is not closed, the upper thread
tension becomes loose and the proper stitch condition can not be obtained.
(d) When the upper thread tension release is activated, the discs (No.1) the
upper thread tension regulator opens 0.8～1.0mm.This is the normal condition
of the discs (No.1) opening. For this adjustment, take the following procedure.
(1) Remove the top motor cover.
From the library of Superior Sewing Machine & Supply LLC • www.supsew.com
Adjust the thread tail (No.3) from the
needle after the trimming with turning the
nut (No.2) of the pre-tension (No.1).
If turn the nut (No.2) to the clockwise, the
thread tail becomes shorter and if turn the
nut (No.2) to the counter-clockwise, the
tread tail becomes longer.
.
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9 Basic mode operation of the technical