—
9
—
in until the tube movement just starts and then a 1/8 turn farther. The hook lubrication is preset. Attach
cover plate 2 again. Setting the hook lubrication with screw 3.
(3) Lubricating wicks and felt (see the picture of above)
a. The wick 1 leading from the oil sump to the
oscillating crank 4 must be fixed between the groove 2
in the arm and the spring 3 of the recirculation wick.
b. When the oil satchel is changed, the flock side should
be faced to connecting plate 10. The oil wick 7 and 8
should be set between the oil satchel 9 and plate 8.
(4) Checking the lubrication oil.
Turn on the power switch. Depress the treadle
gently and check that the oil level rises in the oil sight
glass.
14)
Adjusting the trailing length after thread trimming
Adjust by turning the pre-tensioner 1. If the
tension of the pre-tension is increased, the
lengths of the threads trailing from the needle
tips will be reduced; if the tension is reduced, the
lengths will be increased.
15)
Back tacking
When the reverse lever 1 or the quick
reverse switch is pressed during sewing, the
feed direction will be reversed. When it is
released, the feed direction will return to
normal.
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...