SHING RAY FW787 - TIMING OF NEEDLE AND LOOPER; THE POSITION OF NEEDLE AND LOOPER

-11-
當勾針由右死點往左移至左針左側，
勾針尖與針孔之距離和勾針由左死點
往右回移左針右側時，勾針尖與針
孔之距離(a)均相等，此為最佳之時
位。(圖12、13、14)
註：
左針之針孔至勾針尖的距離約為1∼1﹒2mm
(a)。
B
針與勾針之時位關係：
B. THE TIMING OF NEEDLE AND LOOPER :
(1-1.2mm)
When the Looper move to left from right
dead point to the left side of left needle,
the distance (a) between the tip of looper
and needle hole is same as the Looper
move to right from the left dead point to
the right side of left needle. This timing is
best one. (Fig. 12,13,14)
Remarks :
The clearance between the needle hole of
left needle and the tip of looper is
1∼1﹒2mm(a)﹒
-12-
1. 當針棒示降至最低點及下勾針退至右
定點時，右針之中心點與下勾針之距
離為2.8~3.0mm。
2. 鬆開勾針座上的螺絲(F)，調整下勾
針與右針的正確距離(圖15)。
C 下勾針與針之引量：
1. When the Needle Bar lower to the
lowest position and Looper reverse to
right dead point, the distance between
the center of right needle to the tip of
Looper is 2.8˜3.0mm.
2. Loosen the screw (F) on the Looper
Holder to adjust the correctly distance
of Looper and right needle. (Fig. 15)
C. THE POSITION OF NEEDLE AND LOOPER :