
– 8 –
(3) Motion of 2-step stroke function
By settng memory swtch
or
, Moton of pedal or presser can be selected.
1. In case of pneumatic type presser, the height of intermediate position changes by
adjusting the air pressure and speed controller of the sewing machine.
2. Start of sewing with left pedal becomes effective when 0.3 seconds pass after the
presser moved to the lowest position.
1
When depressng st step of the ntermedate
pedal, the presser stops at the ntermedate
poston.
2
When further depressng 2nd step n the
state that st step of the ntermedate pedal s
depressed, the presser comes down to the bot-
tom poston.
3
When the left lever s pressed wth the presser
at the bottom, sewng starts.
4
When depressng st step of the
ntermedate pedal agan n the
state that the presser s n the
ntermedate poston, the presser
goes up to the top.
5
When depressng the ntermed-
ate pedal agan n the state that
the presser s n the bottom pos-
ton, the presser goes up to the
top.
[When the 2-step stroke by means of the intermediate pedal and the left lever is selected
(PK-47 is used)]
u
u
d
d
d
d
d
d