33
⑸
Front/rear position of needle and looper
The recommended clearance when the end tip of the
looper
①
meets the left needle is 0.2 ~0.3 mm. For
adjustments, unfasten the screw
④
of the looper holder.
[ Figure 55 ]
⑹
Needle and needle guard(rear)
※
When needle guard (R) is at the lowest point of the
needle bar, align the center of the needles along the
line
②
of the needle guard (R)
①
.
①
①
①
③
④
②
②
0.2~0.3mm
For 3-needle type
For 2-needle type
0.2~0.3mm
[ Figure 56 ]
⑷
Needle height
When the end tip of the looper passes the left needle center, it must pass the needle groove at 0.5~1.0 mm off from the
upper part. In other words, the height of the needle is set by the looper.
Using a driver, unfasten the screw
①
of the needle bar holder through a hole in the face plate and adjust the needle bar up
and down to get the right needle height.
[ Figure 54 ]
[ Figure 53 ]
①
0.5~1.0mm
