– 2 –
The pedal is operated in the following four steps:
) The machne runs at low sewng speed when
you lghtly depress the front part of the pedal.
B
2) The machne runs at hgh sewng speed when
you further depress the front part of the pedal.
A
(If the automatc reverse feed sttehng has
been preset, the machne runs at hgh speed
after t completes reverse feed sttchng.)
3) The machne stops (wth ts needle up or
down) when you reset the pedal tots orgnal
poston.
C
4) The machne trms threads when you fully
depress the back part of the pedal.
E
* When auto-lfter (AK25) s used, -step swtch s ncreased between stop and thread trmmng.
The presser foot goes up when the back part of the pedal s lghtly depressed
D
, and the presser
foot comes down once when the back part of the pedal s further strongly depressed.
Then the thread trmmer s actuated and the presser foot goes up agan.
• If you reset the pedal to ts neutral poston durng the automatc reverse feed sttchng at seam
start, the machne stops after t cornpletes the reverse feed sttchng.
• The machne wll perform normal thread trmmng even f you depress the back part of the pedal
mmedately followng hgh or low speed sewng.
• The machne wll completely perforrn thread trmmng even f you reset the pedal to ts neutral
poston mmedately after the machne started thread trmmng acton.
• When the auto-lfter (AK25) s not used, and the selecton of pedal type of the control box (SC-90)
s set to KFL, the pedal depressng amount at the tme of thread trmmng can be shallowed. For
the settng procedure, refer to the Instructon Manual for SC-90.
[When the table/stand for standing work is used]
When usng the table/stand for standng work, change the descrpton of the functon settng No.
7 from “0” to snce the presser s lfted by means of the presser lftng pedal.
In this case, the simplified teaching function cannot be used for LH-4168-7, 4188-7.
5. OPARATION OF THE SEWING MACHINE
5-1. Pedal operation
A
B
C
D
E