Threading The Upper Thread - Siruba DL7200D-NM1 Instruction Book

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4.面線的穿法
在穿線过程中 , 請切断电源 。 当誤按动起动开关时 , 縫紉机动作会导致人员受伤 。
Turn off the power switch before threading the upper threadl.
The machine may operate it the treadle is depressed by mistake,which could ressult in injury.
5.机針和旋梭的同步

THREADING THE UPPER THREAD

注 意 CAUTION
Adjusting the needle and rotary hook timing
·在穿引面線之前轉动手輪 , 抬高挑線杆 (1) 。
这样会使穿引更加容易 , 并防止面線在縫紉开始时
脫落
·Turn the machine pulley and raise the thread
take-up(1) before threading the upper thread.
This will make threading easier and it will prevent
thethread from coming out at the sewing start.
当針杆 (1) 从最低位置向上移动1.8mm (2.2mm用于M和H規格) ,
到达基線 (b) 与針杆軸套 (2) 下端对齊的位置时 , 旋梭尖端
(3) 应与机針中心 (4) 对齊 , 如图所示 。
(此时 , 針孔上边緣与旋梭尖的距离为0.5至0.7mm 。 )
1.轉动縫紉机手輪 , 使針杆 (1) 从最低位置上升到如图
所示的基線 (b) 与針杆軸套 (2) 的下端保持对齊为止 。
2.旋松固定螺釘 (5)[3个] , 使旋梭尖 (3) 与机針 (4) 的
中心一致 。
此时 , 旋梭尖 (3) 与机針 (4) 之間的間隙为0 ~ 0.05mm
3.拧紧固定螺釘 (5) [3个] 。
The tip of the rotary hook (3) should be aligned with the center
of the needle (4) when the needle bar (1) moves up 1.8mm
(2.2mm for -M and -H specifications) from its lowest position
to the position where reference line (b) is aligned with the lower
edge of the needle bar bush (2) as shown in the illustration.
(The distance from the upper edge of the needle hole to the
rotary hook tip will be 0.5 to 0.7mm at this time.)
1.Turn the machine pulley to raise the needle bar (1) from its
lowest position until reference line (b) is aligned with the lower
edge of the needle bar bush D (2) as shown in the illustration.
2.Loosen the set screws (5), and then align the tip of the rotary
hook (3) with the center of the needle (4).
The distance between the tip of the rotary hook (3) and the
needle (4) should be approximately 0-0.05mm.
3. Securely tighten the set screws (5).
-8-

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