Siruba VC008B, Instruction Book / Parts List, Page: 23 / 60

Introduction
P18
圖
20/Fig.20
當針由下始點開始往上移，且勾針由後始點
往前移至如
(
圖
21)A
所示之位置時。勾針尖
與針孔上方之距離為
1.5mm
。
When the needle starts moving up from
the lower dead point,and the looper
starts moving forward from the rear
dead point to the position A show as the
Fig.21,the distance from the looper top
to the upper point of the needle hole is
1.5mm.
圖
22/Fig.22
圖
21/Fig.21
當針由上始點開始往下移，且勾針由前始點
往後移至如
(
圖
21)B
所示位置時，勾針尖與
針孔上方之距離為
3mm
，以上即為正確之
關係位置，即勾針在針中心位置往回時，差
1.5mm
。
調整時，將偏心凸輪
A
的固定螺絲
B
放鬆，
前後調整即可調整期間之時位關係。
(
圖
22)
When the needle moves down,and the
looper moves backward from the front
to the position B shown as Fig.21,the
distance from the looper to the upper
point of the needle hole is 3 mm.That is
the correct correlationship position,which
means the looper is 1.5 mm away from
the needle central position.
While adjusting,loosen the fixed screw
B of the eccentric A and move the
eccentric A back and forth to adjust the
time correlation position.(Fig.22)
TIMING POSITION OF THE NEEDLE
AND THE LOOPER