Separately Driven Needle Changeover Switch (For Lh-4168-7, Lh-4188-7 Only) - JUKI LH-4128-7 Engineer's Manual

6. Separately driven needle changeover switch
(for LH-4168-7, LH-4188-7 only)
2. Changeover of the teaching mode
Teaching mode changeover is possible by the procedures specified below. This function should be utilized ac-
cording to the specification of the sewing product.
1) When the power supply is turned ON while the rightmost button of the control box is pressed, functional setup
becomes available.
(Refer to the Instruction Manual for SC-910)
2) Call function setting No. 112 of the display in the control box.
Setting 0 (Initial set value) : Normal mode (manual teaching mode)
When the sewing comes to the corner section, press left-hand (right-hand) needle changeover switch and
teaching switch.
Sew the corner in a single needle state, lift the presser foot, turn the cloth, and sew the corner of return.
It is not necessary for the operator to perform the release at the time of return since the release of single
needle after this work is automatically performed.
(This function cannot be obtained unless the teaching switch is pressed.)
Setting 1 : Automatic move by changeover of single needle
It is the setting that the teaching mode is automatically set when the separately driven needle changeover
switch is pressed.
Without pressing the teaching switch number of stitches until the presser foot goes up from a single needle
state is counted, and when the presser foot is lowered, the needle returns after the number of stitches which
has been counted. Number of times of button operation is decreased since the number of stitches of entering
and that of return are the same in many cases.
Setting 2 : Teaching mode changeover prohibition
It is setting that the mode does not become the teaching mode even when the teaching switch is pressed after
the separately driven needle changeover switch was pressed and several stitches were sewn.
This function saves the trouble that the stitches of entering and return do not agree with each other when the
teaching switch works after several stitches were sewn.
: Left-hand needle changeover switch
When this switch is pressed, left-hand needle goes
up. When it is presser again, the needle comes down.
: Right-hand needle changeover switch
When this switch is pressed, right-hand needle goes
up. When it is pressed again, the needle comes down.
: Teaching switch
1. Press the teaching switch
changeover switch
, or press the teaching switch
the left changeover switch
switch . Then, the number of stitches begins to be
counted after the mode of single needle is assured
and until the presser is raised again. When the
presser is lowered, the needle is returned after the
completion of sewing for the counted number of
stitches.
– 56 –
, and then press the left
or the right changeover switch
after pressing
or the right changeover