– 26 –
17. Adjustment value of balloon
1
Feed timing
When performing balloon stitch, carry out the adjust-
ment referring to the adjustment values described
below.
Feed driving eccentric cam: Retarding the timing.
Feed rocking eccentric cam: Retarding the timing.
Refer to
“
^
.
[Adjusting the looper thread cam]
Adjust so that the looper thread comes off the looper
thread cam when the top end of the lowering left nee-
dle
3
comes to the middle between the lower end face
and upper end face of the looper when the lowering left
needle. Then, x the looper thread cam with setscrews
1
.
1
2
3
4
2
Looper thread cam timing: Looper thread comes off the looper thread cam in the middle between
the lower end face and upper end face of the looper.
[2-needle balloon stitch without top covering]
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the fol-
lowing work after turning the power off and ascertaining that the motor is at rest.
Thread
To Next Page
Loading...
