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Siruba VC008B Instruction Book / Parts List page 23

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當 針由下始點 開始 往上移 ,且勾針由後始點
往 前 移至如 ( 圖 2 1)A 所示之位置時。勾針尖
與針 孔上方之距 離為 1.5 m m。
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 3 mm ,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 2 2)
TIMING POSITION OF THE NEEDLE
AND THE LOOPER
When t he needle sta rt s moving up from
t he lower dea d point,a nd t he loope r
st arts moving forward from t he rea r
dea d point t o t he p osition A show as t he
Fig.21,the dis tance from the loop er to p
t o t he up per point of t he needle ho le is
1 .5mm.
When the needle moves d own,and t he
loop er moves backwa rd from the fr ont
to t he position B shown a s Fig .21,the
dist anc e from t he looper to t he up per
p oint of the need le hole is 3 mm.That is
the correct correlationship position,which
means t he looper is 1.5 mm away fro m
the needle central posit ion.
While adjus ting, loosen the fixed screw
B of t he ecc ent ric A and move t he
ec centric A bac k and forth t o a djus t t he
time correlat ion posit ion. (Fig .22)
圖 21/Fig.21
Introduction
圖 20/Fig.20
圖 22/Fig.22
P18

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