18
4.8) Reverse button function (for automatic
trimming type)
Pressing the reverse button during forward sewing will
start reverse sewing immediately. When you stop the
machine and restart it by stepping down on the pedal
with the reverse button already pressed down, you can
perform reverse sewing from the beginning. When the
machine is in a
“
stop
”
mode, you can change the up-
down position of the needle bar by pressing the button.
Lightly pressing the button once when the needle is in a
down-stop position will stop the needle bar in a high
position. Pressing the reverse button twice within less
than a second when it is in an up-stop position will stop
the needle bar in a low position.
[Fig. 4-19]
up-stop
position
down-stop
position
4.9) Installation of Automatic Knee Lifter
Solenoid(options) and Power Switch Box
1) Please ensure that the control box
①
should be
placed in the middle of the solenoid bracket
②
by
referring to the figure 4-20 when you attach the
control box.
2) Attach the solenoid to the table
④
following the
assembling instructions enclosed in the solenoid
box. Then adjust the position of the link bowl
⑥
by
loosening a nut
⑤
to make the center of the solenoid
shaft
③
and the undersurface of the table to be
horizontal. After adjusting, tighten the nut firmly.
3) The sound, operation load and the presser foot
lifting can change depending on the attachment state
of the knee lift solenoid. Assemble to make it work
smoothly.
[Fig. 4-20]
②
①
③
⑤
⑥
④
Summary of Contents for KM-1640BL-7
Page 2: ......
