—
6
—
(5) After the thread has been wound
on, remove the bobbin and cut the thread
with the thread-trimming knife 2.
5)
Threading the lower thread
(1) Raise flap 1 and remove the
empty bobbin.
(2) Insert bobbin 2 in such a way that
when the thread is unwound from it moves
in the opposite direction to the gripper.
(3) Pass the thread through slit 3 and
below spring 6, pass the thread through
slit 4 and pull about 3 cm through.
(4) Close flap 1 and pass the thread through the flap’s guide 5.
6)
Adjusting the lower-thread tension
The lower-thread tension should be set in accordance with the type of seam required. Adjust the tension
with screw 7. (See the picture of above)
7)
Installing the needle
Note: Before attach needle, be sure to turn off the power.
1) Turn the balance wheel by hand to raise the needle bar to its
highest position;
2) Loosen the needle clamping screw
;
3) Hold the needles so that the two needles side with the long
grooved (faces each other), and insert it as deeply as it will go
into the needle clamping holes( model GC20688-2-D);Hold the
needle to its side with the long groove side(left),then insert the
needle as deeply as it will go into the needle clamping
hole(model GC20688-1-D).
4) Tighten the needle clamping screw.
8)
Alternating presser foot movement amount
The alternating movement amount for the inner presser
foot and the outer presser foot can be adjusted within the range
of 1-7 mm using the alternating presser foot movement dial 1.
Turn the alternating presser foot movement dial 1 clockwise or
counterclockwise to align the mark. (MIN. A, B, C, D, E, F
MAX. )
Содержание GC20688 Series
Страница 21: ...A ARM BED AND ITS ACCESSORIES 20...
Страница 25: ...B THREAD TENSION REGULATOR MECHANISM 24...
Страница 28: ...C SEWING MECHANISM 27...
Страница 31: ...D PRESSER FOOT MECHANISM 30...
Страница 35: ...E UPPER FEED LIFTING ROCK SHAFT MECHANISM 34...
Страница 38: ...F STITCH REGULATOR MECHANISM 37...
Страница 41: ...G FEEDING AND FEED LIFTING ROTATING HOOK SHAFT MECHANISM 40...
Страница 44: ...H HOOK SADDLE MECHANISM RIGHT 43...
Страница 48: ...I HOOK SADDLE MECHANISM LEFT 47...
Страница 52: ...J OIL LUBRICATION MECHANISM 51...
Страница 53: ...J OIL LUBRICATION MECHANISM 52...
Страница 56: ...K ACCESSORIES 55...
Страница 58: ...L PNEUMATIC CONTROL UNIT 57...