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When the pedal sensor is changed (KFL → PFL or
PFL → KFL), replace jumper to fit the pedal speci-
fications changed.
(Caution) 1. Pedal sensor with two springs lo-
cated at the back part of the pedal
type is PFL, and that with one
spring type is KFL. Set the pedal
sensor to PFL when lifting the
presser foot by depressing the back
part of the pedal.
2. When changing the jumper , be
sure to do the work after turning
OFF the power. If the jumper is
changed while the power is ON, the
setting does not change.
The main unit may be broken.
(4) Automatic compensation of neutral point of the pedal sensor
(5) Selection of the pedal speifications
KFL • PFL
KFL • PFL
KFL setting PFL setting
Whenever the pedal sensor, spring, etc. are replaced,
be sure to perform following operation :
1. Pressing switch , turn ON the power switch.
2. Indication on the screen will be as illustrated in
. At this time, the value indicated in the 7 seg-
ments of four figures is the compensation value.
(Caution) At this time, the pedal sensor does not
work properly if the pedal is de-
pressed. Do not place the foot or any
object on the pedal. Warning sound
“peeps” and the compensation value
is not displayed.
3. Turn OFF the power switch, and turn ON the
power switch again to return to the normal mode.
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