— 5 —
(
2
)
Hold the bobbin so that the bobbin thread is would in right direction and put it into the hook.
12.LIFTING THE BOBBIN THREAD
(
1
)
Put the hook into the bobbin case and press down the latch 1.
The thread end should be left on the bed.
(
2
)
While holding the thread by left hand,rorate the balance wheel one turn by right hand.
By pulling up the needle thread,as shown in the figure,the bobbin thread will be lifted.The combination of
bobbin thread and needle thread should be aligned and led backward.
13.BALANCE OF THREAD TENSION
14.ADJUSTMENT OF THE BOBBIN THREAD TENSION
There is virtually no need to adjust the bobbin thread tension,
except for special kind of the thread, when slight adjustment will
be necessary.
Turning the adjusting screw clockwise will increase the
tension of bobbin thread, otherwise, the tension of bobbin thread
will decrease.
Needle thread tension should be adjusted in reference to
bobbin thread tension.
Summary of Contents for GC20618-1DZ
Page 17: ...A ARM BED AND ITS ACCESSORIES 15 15 ...
Page 20: ...B THREAD TENSION REGULATOR MECHANISM 18 18 ...
Page 23: ...C ARM SHAFT MECHANISM 21 21 ...
Page 26: ...D PRESSER FOOT MECHANISM 24 24 ...
Page 29: ...E NEEDLE BAR THREAD TAKE UP LEVER MECHANISM 27 27 ...
Page 31: ...F STITCH REGULATOR MECHANISM 29 29 ...
Page 34: ...G LOWER SHAFT FEED ROCK SHAFT MECHANISM 32 32 ...
Page 37: ...H HOOK SADDLE MECHANSIM 35 35 ...
Page 39: ...I THREAD TRIMMER MECHAISM Ⅰ 37 37 ...
Page 41: ...J THREAD TRIMMER MECHAISM Ⅱ 39 39 ...
Page 44: ...K MOTOR MECHANISM 42 42 ...
Page 46: ...L OIL LUBRICATION MECHANISM 44 44 ...
Page 49: ...M ACCESSORIES 47 47 ...